Bugzilla – Bug 1218836
VUL-0: CVE-2023-46838: kernel-source: netback processing of zero-length transmit fragment (XSA-448)
Last modified: 2024-06-25 18:05:39 UTC
This is now public at https://seclists.org/oss-sec/2024/q1/38 -- ISSUE DESCRIPTION ================= Transmit requests in Xen's virtual network protocol can consist of multiple parts. While not really useful, except for the initial part any of them may be of zero length, i.e. carry no data at all. Besides a certain initial portion of the to be transferred data, these parts are directly translated into what Linux calls SKB fragments. Such converted request parts can, when for a particular SKB they are all of length zero, lead to a de-reference of NULL in core networking code. IMPACT ====== An unprivileged guest can cause Denial of Service (DoS) of the host by sending network packets to the backend, causing the backend to crash. Data corruption or privilege escalation have not been ruled out. VULNERABLE SYSTEMS ================== All systems using a Linux based network backend with kernel 4.14 and newer are vulnerable. Earlier versions may also be vulnerable. Systems using other network backends are not known to be vulnerable. MITIGATION ========== Using a userspace PV network backend (e.g. the qemu based "qnic" backend) will mitigate the problem. Using a dedicated network driver domain per guest will mitigate the problem. CREDITS ======= This issue was discovered by Pratyush Yadav of Amazon.
Patch has been submitted to all relevant kernel branches.
SUSE-SU-2024:0469-1: An update that solves 19 vulnerabilities, contains eight features and has 41 security fixes can now be installed. Category: security (important) Bug References: 1065729, 1108281, 1141539, 1174649, 1181674, 1193285, 1194869, 1209834, 1210443, 1211515, 1212091, 1214377, 1215275, 1215885, 1216441, 1216559, 1216702, 1217895, 1217987, 1217988, 1217989, 1218005, 1218447, 1218527, 1218659, 1218713, 1218723, 1218730, 1218738, 1218752, 1218757, 1218768, 1218778, 1218779, 1218804, 1218832, 1218836, 1218916, 1218948, 1218958, 1218968, 1218997, 1219006, 1219012, 1219013, 1219014, 1219053, 1219067, 1219120, 1219128, 1219136, 1219285, 1219349, 1219412, 1219429, 1219434, 1219490, 1219512, 1219568, 1219582 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-4921, CVE-2023-51042, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6531, CVE-2023-6535, CVE-2023-6536, CVE-2023-6915, CVE-2024-0565, CVE-2024-0641, CVE-2024-0775, CVE-2024-1085, CVE-2024-1086 Jira References: PED-4729, PED-6694, PED-7322, PED-7615, PED-7616, PED-7620, PED-7622, PED-7623 Sources used: openSUSE Leap 15.5 (src): kernel-livepatch-SLE15-SP5-RT_Update_10-1-150500.11.5.1, kernel-source-rt-5.14.21-150500.13.35.1, kernel-syms-rt-5.14.21-150500.13.35.1 SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5-RT_Update_10-1-150500.11.5.1 SUSE Real Time Module 15-SP5 (src): kernel-source-rt-5.14.21-150500.13.35.1, kernel-syms-rt-5.14.21-150500.13.35.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0468-1: An update that solves nine vulnerabilities and has 15 security fixes can now be installed. Category: security (important) Bug References: 1065729, 1108281, 1123986, 1141539, 1181674, 1206889, 1212152, 1216702, 1216989, 1217525, 1218713, 1218730, 1218752, 1218757, 1218768, 1218836, 1218968, 1219022, 1219053, 1219120, 1219412, 1219434, 1219445, 1219446 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2024-0775, CVE-2024-1086 Sources used: SUSE Linux Enterprise Real Time 12 SP5 (src): kernel-source-rt-4.12.14-10.162.1, kernel-syms-rt-4.12.14-10.162.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0463-1: An update that solves 14 vulnerabilities and has four security fixes can now be installed. Category: security (important) Bug References: 1108281, 1193285, 1216702, 1217987, 1217988, 1217989, 1218713, 1218730, 1218752, 1218757, 1218768, 1218804, 1218832, 1218836, 1219053, 1219120, 1219412, 1219434 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6535, CVE-2023-6536, CVE-2023-6915, CVE-2024-0565, CVE-2024-0775, CVE-2024-1086 Sources used: NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0476-1: An update that solves 19 vulnerabilities and has 16 security fixes can now be installed. Category: security (important) Bug References: 1108281, 1177529, 1209834, 1212091, 1215885, 1216016, 1216702, 1217217, 1217670, 1217895, 1217987, 1217988, 1217989, 1218689, 1218713, 1218730, 1218752, 1218757, 1218768, 1218804, 1218832, 1218836, 1218916, 1218929, 1218930, 1218968, 1219053, 1219120, 1219128, 1219349, 1219412, 1219429, 1219434, 1219490, 1219608 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-51042, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6535, CVE-2023-6536, CVE-2023-6915, CVE-2024-0340, CVE-2024-0565, CVE-2024-0641, CVE-2024-0775, CVE-2024-1085, CVE-2024-1086, CVE-2024-24860 Sources used: SUSE Linux Enterprise Live Patching 15-SP4 (src): kernel-livepatch-SLE15-SP4-RT_Update_18-1-150400.1.3.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0474-1: An update that solves 15 vulnerabilities and has four security fixes can now be installed. Category: security (important) Bug References: 1108281, 1193285, 1215275, 1216702, 1217987, 1217988, 1217989, 1218713, 1218730, 1218752, 1218757, 1218768, 1218804, 1218832, 1218836, 1219053, 1219120, 1219412, 1219434 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-4921, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6535, CVE-2023-6536, CVE-2023-6915, CVE-2024-0565, CVE-2024-0775, CVE-2024-1086 Sources used: SUSE Enterprise Storage 7.1 (src): kernel-default-base-5.3.18-150300.59.150.1.150300.18.88.1, kernel-syms-5.3.18-150300.59.150.1, kernel-source-5.3.18-150300.59.150.1, kernel-obs-build-5.3.18-150300.59.150.1 SUSE Linux Enterprise Micro 5.1 (src): kernel-default-base-5.3.18-150300.59.150.1.150300.18.88.1 SUSE Linux Enterprise Micro 5.2 (src): kernel-default-base-5.3.18-150300.59.150.1.150300.18.88.1 SUSE Linux Enterprise Micro for Rancher 5.2 (src): kernel-default-base-5.3.18-150300.59.150.1.150300.18.88.1 openSUSE Leap 15.3 (src): kernel-obs-qa-5.3.18-150300.59.150.1, kernel-source-5.3.18-150300.59.150.1, kernel-syms-5.3.18-150300.59.150.1, kernel-livepatch-SLE15-SP3_Update_41-1-150300.7.3.1, kernel-default-base-5.3.18-150300.59.150.1.150300.18.88.1, kernel-obs-build-5.3.18-150300.59.150.1 SUSE Linux Enterprise Live Patching 15-SP3 (src): kernel-livepatch-SLE15-SP3_Update_41-1-150300.7.3.1 SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (src): kernel-default-base-5.3.18-150300.59.150.1.150300.18.88.1, kernel-syms-5.3.18-150300.59.150.1, kernel-source-5.3.18-150300.59.150.1, kernel-obs-build-5.3.18-150300.59.150.1 SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (src): kernel-default-base-5.3.18-150300.59.150.1.150300.18.88.1, kernel-syms-5.3.18-150300.59.150.1, kernel-source-5.3.18-150300.59.150.1, kernel-obs-build-5.3.18-150300.59.150.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3 (src): kernel-default-base-5.3.18-150300.59.150.1.150300.18.88.1, kernel-syms-5.3.18-150300.59.150.1, kernel-source-5.3.18-150300.59.150.1, kernel-obs-build-5.3.18-150300.59.150.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0478-1: An update that solves 15 vulnerabilities and has four security fixes can now be installed. Category: security (important) Bug References: 1108281, 1193285, 1215275, 1216702, 1217987, 1217988, 1217989, 1218713, 1218730, 1218752, 1218757, 1218768, 1218804, 1218832, 1218836, 1219053, 1219120, 1219412, 1219434 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-4921, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6535, CVE-2023-6536, CVE-2023-6915, CVE-2024-0565, CVE-2024-0775, CVE-2024-1086 Sources used: SUSE Linux Enterprise Live Patching 15-SP2 (src): kernel-livepatch-SLE15-SP2_Update_45-1-150200.5.3.1 SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (src): kernel-default-base-5.3.18-150200.24.178.1.150200.9.91.1, kernel-syms-5.3.18-150200.24.178.1, kernel-obs-build-5.3.18-150200.24.178.1, kernel-source-5.3.18-150200.24.178.1 SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (src): kernel-default-base-5.3.18-150200.24.178.1.150200.9.91.1, kernel-syms-5.3.18-150200.24.178.1, kernel-obs-build-5.3.18-150200.24.178.1, kernel-source-5.3.18-150200.24.178.1 SUSE Linux Enterprise Server for SAP Applications 15 SP2 (src): kernel-default-base-5.3.18-150200.24.178.1.150200.9.91.1, kernel-syms-5.3.18-150200.24.178.1, kernel-obs-build-5.3.18-150200.24.178.1, kernel-source-5.3.18-150200.24.178.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0484-1: An update that solves 15 vulnerabilities and has 15 security fixes can now be installed. Category: security (important) Bug References: 1065729, 1108281, 1123986, 1141539, 1181674, 1206889, 1212152, 1216702, 1216989, 1217525, 1217946, 1217987, 1217988, 1217989, 1218689, 1218713, 1218730, 1218752, 1218757, 1218768, 1218836, 1218968, 1219022, 1219053, 1219120, 1219128, 1219412, 1219434, 1219445, 1219446 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-51042, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6535, CVE-2023-6536, CVE-2023-6610, CVE-2024-0340, CVE-2024-0775, CVE-2024-1086 Sources used: SUSE Linux Enterprise Live Patching 12-SP5 (src): kgraft-patch-SLE12-SP5_Update_53-1-8.5.1 SUSE Linux Enterprise Software Development Kit 12 SP5 (src): kernel-obs-build-4.12.14-122.194.1 SUSE Linux Enterprise High Performance Computing 12 SP5 (src): kernel-syms-4.12.14-122.194.1, kernel-source-4.12.14-122.194.1 SUSE Linux Enterprise Server 12 SP5 (src): kernel-syms-4.12.14-122.194.1, kernel-source-4.12.14-122.194.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src): kernel-syms-4.12.14-122.194.1, kernel-source-4.12.14-122.194.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0516-1: An update that solves 21 vulnerabilities, contains nine features and has 40 security fixes can now be installed. Category: security (important) Bug References: 1065729, 1108281, 1141539, 1174649, 1181674, 1193285, 1194869, 1209834, 1210443, 1211515, 1212091, 1214377, 1215275, 1215885, 1216441, 1216559, 1216702, 1217895, 1217987, 1217988, 1217989, 1218005, 1218447, 1218527, 1218659, 1218689, 1218713, 1218723, 1218730, 1218752, 1218757, 1218768, 1218778, 1218779, 1218804, 1218832, 1218836, 1218916, 1218948, 1218958, 1218968, 1218997, 1219006, 1219012, 1219013, 1219014, 1219053, 1219067, 1219120, 1219128, 1219136, 1219285, 1219349, 1219412, 1219429, 1219434, 1219490, 1219512, 1219568, 1219582, 1219608 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-4921, CVE-2023-51042, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6531, CVE-2023-6535, CVE-2023-6536, CVE-2023-6915, CVE-2024-0340, CVE-2024-0565, CVE-2024-0641, CVE-2024-0775, CVE-2024-1085, CVE-2024-1086, CVE-2024-24860 Jira References: PED-4729, PED-6694, PED-7322, PED-7615, PED-7616, PED-7618, PED-7620, PED-7622, PED-7623 Sources used: openSUSE Leap 15.5 (src): kernel-livepatch-SLE15-SP5_Update_10-1-150500.11.5.1, kernel-source-5.14.21-150500.55.49.1, kernel-default-base-5.14.21-150500.55.49.1.150500.6.21.2, kernel-obs-build-5.14.21-150500.55.49.1, kernel-syms-5.14.21-150500.55.49.1, kernel-obs-qa-5.14.21-150500.55.49.1 SUSE Linux Enterprise Micro 5.5 (src): kernel-default-base-5.14.21-150500.55.49.1.150500.6.21.2 Basesystem Module 15-SP5 (src): kernel-source-5.14.21-150500.55.49.1, kernel-default-base-5.14.21-150500.55.49.1.150500.6.21.2 Development Tools Module 15-SP5 (src): kernel-obs-build-5.14.21-150500.55.49.1, kernel-source-5.14.21-150500.55.49.1, kernel-syms-5.14.21-150500.55.49.1 SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5_Update_10-1-150500.11.5.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0515-1: An update that solves 20 vulnerabilities and has 16 security fixes can now be installed. Category: security (important) Bug References: 1108281, 1177529, 1209834, 1212091, 1215275, 1215885, 1216016, 1216702, 1217217, 1217670, 1217895, 1217987, 1217988, 1217989, 1218689, 1218713, 1218730, 1218752, 1218757, 1218768, 1218804, 1218832, 1218836, 1218916, 1218929, 1218930, 1218968, 1219053, 1219120, 1219128, 1219349, 1219412, 1219429, 1219434, 1219490, 1219608 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-4921, CVE-2023-51042, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6535, CVE-2023-6536, CVE-2023-6915, CVE-2024-0340, CVE-2024-0565, CVE-2024-0641, CVE-2024-0775, CVE-2024-1085, CVE-2024-1086, CVE-2024-24860 Sources used: SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-source-5.14.21-150400.24.108.1, kernel-obs-build-5.14.21-150400.24.108.1, kernel-syms-5.14.21-150400.24.108.1 SUSE Linux Enterprise Desktop 15 SP4 LTSS 15-SP4 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-source-5.14.21-150400.24.108.1, kernel-obs-build-5.14.21-150400.24.108.1, kernel-syms-5.14.21-150400.24.108.1 SUSE Linux Enterprise Server 15 SP4 LTSS 15-SP4 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-source-5.14.21-150400.24.108.1, kernel-obs-build-5.14.21-150400.24.108.1, kernel-syms-5.14.21-150400.24.108.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-source-5.14.21-150400.24.108.1, kernel-obs-build-5.14.21-150400.24.108.1, kernel-syms-5.14.21-150400.24.108.1 SUSE Manager Proxy 4.3 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-source-5.14.21-150400.24.108.1 SUSE Manager Retail Branch Server 4.3 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-source-5.14.21-150400.24.108.1 SUSE Manager Server 4.3 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-source-5.14.21-150400.24.108.1 openSUSE Leap 15.4 (src): kernel-source-5.14.21-150400.24.108.1, kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-syms-5.14.21-150400.24.108.1, kernel-obs-qa-5.14.21-150400.24.108.1, kernel-obs-build-5.14.21-150400.24.108.1, kernel-livepatch-SLE15-SP4_Update_23-1-150400.9.5.1 openSUSE Leap Micro 5.3 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2 openSUSE Leap Micro 5.4 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2 SUSE Linux Enterprise Micro for Rancher 5.3 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2 SUSE Linux Enterprise Micro 5.3 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2 SUSE Linux Enterprise Micro for Rancher 5.4 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2 SUSE Linux Enterprise Micro 5.4 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2 SUSE Linux Enterprise Live Patching 15-SP4 (src): kernel-livepatch-SLE15-SP4_Update_23-1-150400.9.5.1 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (src): kernel-default-base-5.14.21-150400.24.108.1.150400.24.50.2, kernel-source-5.14.21-150400.24.108.1, kernel-obs-build-5.14.21-150400.24.108.1, kernel-syms-5.14.21-150400.24.108.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0514-1: An update that solves 21 vulnerabilities, contains nine features and has 41 security fixes can now be installed. Category: security (important) Bug References: 1065729, 1108281, 1141539, 1174649, 1181674, 1193285, 1194869, 1209834, 1210443, 1211515, 1212091, 1214377, 1215275, 1215885, 1216441, 1216559, 1216702, 1217895, 1217987, 1217988, 1217989, 1218005, 1218447, 1218527, 1218659, 1218689, 1218713, 1218723, 1218730, 1218738, 1218752, 1218757, 1218768, 1218778, 1218779, 1218804, 1218832, 1218836, 1218916, 1218948, 1218958, 1218968, 1218997, 1219006, 1219012, 1219013, 1219014, 1219053, 1219067, 1219120, 1219128, 1219136, 1219285, 1219349, 1219412, 1219429, 1219434, 1219490, 1219512, 1219568, 1219582, 1219608 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-4921, CVE-2023-51042, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2023-6356, CVE-2023-6531, CVE-2023-6535, CVE-2023-6536, CVE-2023-6915, CVE-2024-0340, CVE-2024-0565, CVE-2024-0641, CVE-2024-0775, CVE-2024-1085, CVE-2024-1086, CVE-2024-24860 Jira References: PED-4729, PED-6694, PED-7322, PED-7615, PED-7616, PED-7618, PED-7620, PED-7622, PED-7623 Sources used: openSUSE Leap 15.5 (src): kernel-source-azure-5.14.21-150500.33.34.1, kernel-syms-azure-5.14.21-150500.33.34.1 Public Cloud Module 15-SP5 (src): kernel-source-azure-5.14.21-150500.33.34.1, kernel-syms-azure-5.14.21-150500.33.34.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0483-1: An update that solves 11 vulnerabilities and has 15 security fixes can now be installed. Category: security (important) Bug References: 1065729, 1108281, 1123986, 1141539, 1181674, 1206889, 1212152, 1216702, 1216989, 1217525, 1218689, 1218713, 1218730, 1218752, 1218757, 1218768, 1218836, 1218968, 1219022, 1219053, 1219120, 1219128, 1219412, 1219434, 1219445, 1219446 CVE References: CVE-2021-33631, CVE-2023-46838, CVE-2023-47233, CVE-2023-51042, CVE-2023-51043, CVE-2023-51780, CVE-2023-51782, CVE-2023-6040, CVE-2024-0340, CVE-2024-0775, CVE-2024-1086 Sources used: SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src): kernel-source-azure-4.12.14-16.168.1, kernel-syms-azure-4.12.14-16.168.1 SUSE Linux Enterprise High Performance Computing 12 SP5 (src): kernel-source-azure-4.12.14-16.168.1, kernel-syms-azure-4.12.14-16.168.1 SUSE Linux Enterprise Server 12 SP5 (src): kernel-source-azure-4.12.14-16.168.1, kernel-syms-azure-4.12.14-16.168.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.