Bugzilla – Bug 1175476
VUL-1: CVE-2019-14562: ovmf: DxeImageVerificationHandler integer overflow leads to endless loop
Last modified: 2021-01-27 17:05:11 UTC
rh#1869245 There is an integer overflow vulnerability in the DxeImageVerificationHandler(..) function when parsing the PE files attribute certificate table. In cases where WinCertificate->dwLength is sufficiently large, it's possible to overflow Offset back to 0 causing an endless loop. References: https://bugzilla.tianocore.org/show_bug.cgi?id=2215 References: https://bugzilla.redhat.com/show_bug.cgi?id=1869245 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-14562 https://github.com/leadsama/edk2/commit/64432aa296f3dd5df7674b2e5dcfd65d8a0af176
tracking as affected: - SUSE:SLE-12-SP2:Update / ovmf - SUSE:SLE-12-SP3:Update / ovmf - SUSE:SLE-12-SP4:Update / ovmf - SUSE:SLE-15:Update / ovmf - SUSE:SLE-15-SP2:Update / ovmf
The fix is still under discussion. https://edk2.groups.io/g/devel/topic/76165658
The patches are merged into upstream git: https://github.com/tianocore/edk2/commit/503248ccdf45c14d4040ce44163facdc212e4991 SecurityPkg/DxeImageVerificationLib: extract SecDataDirEnd, SecDataDirLeft https://github.com/tianocore/edk2/commit/a7632e913c1c106f436aefd5e76c394249c383a8 SecurityPkg/DxeImageVerificationLib: assign WinCertificate after size check https://github.com/tianocore/edk2/commit/0b143fa43e92be15d11e22f80773bcb1b2b0608f SecurityPkg/DxeImageVerificationLib: catch alignment overflow (CVE-2019-14562)
Those patches are submitted.
SUSE-SU-2020:2691-1: An update that solves one vulnerability and has one errata is now available. Category: security (moderate) Bug References: 1119454,1175476 CVE References: CVE-2019-14562 JIRA References: Sources used: SUSE Linux Enterprise Module for Server Applications 15-SP2 (src): ovmf-201911-7.5.2 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-2020:2714-1: An update that solves one vulnerability and has one errata is now available. Category: security (moderate) Bug References: 1175476,1175674 CVE References: CVE-2019-14562 JIRA References: Sources used: SUSE OpenStack Cloud Crowbar 9 (src): ovmf-2017+git1510945757.b2662641d5-3.29.1 SUSE OpenStack Cloud 9 (src): ovmf-2017+git1510945757.b2662641d5-3.29.1 SUSE Linux Enterprise Server for SAP 12-SP4 (src): ovmf-2017+git1510945757.b2662641d5-3.29.1 SUSE Linux Enterprise Server 12-SP5 (src): ovmf-2017+git1510945757.b2662641d5-3.29.1 SUSE Linux Enterprise Server 12-SP4-LTSS (src): ovmf-2017+git1510945757.b2662641d5-3.29.1 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-2020:2713-1: An update that solves one vulnerability and has one errata is now available. Category: security (moderate) Bug References: 1175476,1175674 CVE References: CVE-2019-14562 JIRA References: Sources used: SUSE Linux Enterprise Server for SAP 15 (src): ovmf-2017+git1510945757.b2662641d5-5.35.1 SUSE Linux Enterprise Server 15-LTSS (src): ovmf-2017+git1510945757.b2662641d5-5.35.1 SUSE Linux Enterprise Module for Server Applications 15-SP1 (src): ovmf-2017+git1510945757.b2662641d5-5.35.1 SUSE Linux Enterprise High Performance Computing 15-LTSS (src): ovmf-2017+git1510945757.b2662641d5-5.35.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS (src): ovmf-2017+git1510945757.b2662641d5-5.35.1 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.
openSUSE-SU-2020:1525-1: An update that solves one vulnerability and has one errata is now available. Category: security (moderate) Bug References: 1119454,1175476 CVE References: CVE-2019-14562 JIRA References: Sources used: openSUSE Leap 15.2 (src): ovmf-201911-lp152.6.5.1
openSUSE-SU-2020:1535-1: An update that solves one vulnerability and has one errata is now available. Category: security (moderate) Bug References: 1175476,1175674 CVE References: CVE-2019-14562 JIRA References: Sources used: openSUSE Leap 15.1 (src): ovmf-2017+git1510945757.b2662641d5-lp151.11.9.1
SUSE-SU-2020:3126-1: An update that fixes two vulnerabilities is now available. Category: security (moderate) Bug References: 1163927,1175476 CVE References: CVE-2019-14559,CVE-2019-14562 JIRA References: Sources used: SUSE OpenStack Cloud 7 (src): ovmf-2015+git1462940744.321151f-19.15.1 SUSE Linux Enterprise Server for SAP 12-SP2 (src): ovmf-2015+git1462940744.321151f-19.15.1 SUSE Linux Enterprise Server 12-SP2-LTSS (src): ovmf-2015+git1462940744.321151f-19.15.1 SUSE Linux Enterprise Server 12-SP2-BCL (src): ovmf-2015+git1462940744.321151f-19.15.1 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.
DONE