Bugzilla – Bug 1162687
VUL-0: CVE-2020-8449, CVE-2020-8450: squid: improper input validation in HTTP Request processing (SQUID-2020:1)
Last modified: 2023-03-27 08:18:39 UTC
__________________________________________________________________ Squid Proxy Cache Security Update Advisory SQUID-2020:1 __________________________________________________________________ Advisory ID: SQUID-2020:1 Date: February 03, 2020 Summary: Improper Input Validation issues in HTTP Request processing. Affected versions: Squid 2.x -> 2.7.STABLE9 Squid 3.x -> 3.5.28 Squid 4.x -> 4.9 Fixed in version: Squid 4.10 __________________________________________________________________ http://www.squid-cache.org/Advisories/SQUID-2020_1.txt http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8449 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8450 __________________________________________________________________ Problem Description: Due to incorrect input validation Squid can interpret crafted HTTP requests in unexpected ways to access server resources prohibited by earlier security filters. Due to incorrect buffer management a remote client can cause a buffer overflow in a Squid acting as reverse-proxy. __________________________________________________________________ Severity: This issue allows attackers to perform denial of service on the proxy and all clients using it. This issue potentially allows attackers to bypass security access controls in systems between client and proxy. This issue potentially allows remote code execution under the proxy low-privilege level. While restricted, it does have access to a wide range of information about the network structure and other clients using the proxy. This issue is limited to Squid acting as a reverse-proxy. Some effects also require allow_direct permissions. __________________________________________________________________ Updated Packages: This bug is fixed by Squid version 4.10. In addition, patches addressing this problem for the stable releases can be found in our patch archives: Squid 3.5: <http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2020_1.patch> Squid 4.8 and older: <http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_1.patch> Squid 4.9: <http://www.squid-cache.org/Versions/v4/changesets/squid-4-b3a0719affab099c684f1cd62b79ab02816fa962.patch> If you are using a prepackaged version of Squid then please refer to the package vendor for availability information on updated packages. __________________________________________________________________ Determining if your version is vulnerable: All Squid-2.x up to and including 2.7.STABLE9 with http_port 'accel' or 'vhost' options configured are vulnerable. All Squid-3.x up to and including 3.5.28 with http_port 'accel' or 'vhost' options configured are vulnerable. All Squid-4.x up to and including 4.9 with with http_port 'accel' option configured are vulnerable. To determine what port options are configured use the command: squid -k parse | grep -E _port __________________________________________________________________ Workarounds: There are no workarounds.
This is an autogenerated message for OBS integration: This bug (1162687) was mentioned in https://build.opensuse.org/request/show/770216 Factory / squid
SUSE-SU-2020:0487-1: An update that fixes four vulnerabilities is now available. Category: security (moderate) Bug References: 1162687,1162689,1162691 CVE References: CVE-2019-12528,CVE-2020-8449,CVE-2020-8450,CVE-2020-8517 Sources used: SUSE Linux Enterprise Server 12-SP5 (src): squid-4.10-4.6.1 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-2020:0493-1: An update that fixes four vulnerabilities is now available. Category: security (moderate) Bug References: 1162687,1162689,1162691 CVE References: CVE-2019-12528,CVE-2020-8449,CVE-2020-8450,CVE-2020-8517 Sources used: SUSE Linux Enterprise Module for Server Applications 15-SP1 (src): squid-4.10-5.14.1 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-2020:0307-1: An update that fixes four vulnerabilities is now available. Category: security (moderate) Bug References: 1162687,1162689,1162691 CVE References: CVE-2019-12528,CVE-2020-8449,CVE-2020-8450,CVE-2020-8517 Sources used: openSUSE Leap 15.1 (src): squid-4.10-lp151.2.11.1
SUSE-SU-2020:0661-1: An update that fixes 10 vulnerabilities is now available. Category: security (important) Bug References: 1156323,1156324,1156326,1156328,1156329,1162687,1162689,1162691 CVE References: CVE-2019-12523,CVE-2019-12526,CVE-2019-12528,CVE-2019-18676,CVE-2019-18677,CVE-2019-18678,CVE-2019-18679,CVE-2020-8449,CVE-2020-8450,CVE-2020-8517 Sources used: SUSE OpenStack Cloud Crowbar 8 (src): squid-3.5.21-26.20.1 SUSE OpenStack Cloud 8 (src): squid-3.5.21-26.20.1 SUSE OpenStack Cloud 7 (src): squid-3.5.21-26.20.1 SUSE Linux Enterprise Server for SAP 12-SP3 (src): squid-3.5.21-26.20.1 SUSE Linux Enterprise Server for SAP 12-SP2 (src): squid-3.5.21-26.20.1 SUSE Linux Enterprise Server 12-SP4 (src): squid-3.5.21-26.20.1 SUSE Linux Enterprise Server 12-SP3-LTSS (src): squid-3.5.21-26.20.1 SUSE Linux Enterprise Server 12-SP3-BCL (src): squid-3.5.21-26.20.1 SUSE Linux Enterprise Server 12-SP2-LTSS (src): squid-3.5.21-26.20.1 SUSE Linux Enterprise Server 12-SP2-BCL (src): squid-3.5.21-26.20.1 SUSE Enterprise Storage 5 (src): squid-3.5.21-26.20.1 HPE Helion Openstack 8 (src): squid-3.5.21-26.20.1 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-2020:0606-1: An update that fixes four vulnerabilities is now available. Category: security (moderate) Bug References: 1162687,1162689,1162691 CVE References: CVE-2019-12528,CVE-2020-8449,CVE-2020-8450,CVE-2020-8517 Sources used: openSUSE Leap 15.1 (src): squid-4.10-lp151.2.14.1
SUSE-SU-2020:14460-1: An update that fixes 21 vulnerabilities is now available. Category: security (important) Bug References: 1140738,1141329,1141332,1156323,1156324,1156326,1156328,1156329,1162687,1162689,1162691,1167373,1169659,1170313,1170423,1173304,1173455 CVE References: CVE-2019-12519,CVE-2019-12520,CVE-2019-12521,CVE-2019-12523,CVE-2019-12524,CVE-2019-12525,CVE-2019-12526,CVE-2019-12528,CVE-2019-12529,CVE-2019-13345,CVE-2019-18676,CVE-2019-18677,CVE-2019-18678,CVE-2019-18679,CVE-2019-18860,CVE-2020-11945,CVE-2020-14059,CVE-2020-15049,CVE-2020-8449,CVE-2020-8450,CVE-2020-8517 JIRA References: Sources used: SUSE Linux Enterprise Server 11-SP4-LTSS (src): squid3-3.1.23-8.16.37.12.1 SUSE Linux Enterprise Point of Sale 11-SP3 (src): squid3-3.1.23-8.16.37.12.1 SUSE Linux Enterprise Debuginfo 11-SP4 (src): squid3-3.1.23-8.16.37.12.1 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.