Unrated severityNVD Advisory· Published Apr 15, 2020· Updated Aug 4, 2024
CVE-2019-12519
CVE-2019-12519
Description
An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
28- Squid/Squiddescription
- osv-coords26 versionspkg:rpm/almalinux/libecappkg:rpm/almalinux/libecap-develpkg:rpm/opensuse/squid&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/squid&distro=openSUSE%20Tumbleweedpkg:rpm/suse/squid3&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/squid3&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/squid&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/squid&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/squid&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/squid&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/squid&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208
< 1.0.1-2.module_el8.6.0+2741+01592ae8+ 25 more
- (no CPE)range: < 1.0.1-2.module_el8.6.0+2741+01592ae8
- (no CPE)range: < 1.0.1-2.module_el8.6.0+2741+01592ae8
- (no CPE)range: < 4.11-lp151.2.15.2
- (no CPE)range: < 4.16-1.5
- (no CPE)range: < 3.1.23-8.16.37.12.1
- (no CPE)range: < 3.1.23-8.16.37.12.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 4.11-5.17.2
- (no CPE)range: < 4.11-5.17.2
- (no CPE)range: < 4.11-5.17.2
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 4.11-4.9.1
- (no CPE)range: < 4.11-5.17.2
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 4.11-4.9.1
- (no CPE)range: < 4.11-5.17.2
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
- (no CPE)range: < 3.5.21-26.23.1
Patches
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
8- lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.htmlmitrevendor-advisoryx_refsource_SUSE
- security.gentoo.org/glsa/202005-05mitrevendor-advisoryx_refsource_GENTOO
- usn.ubuntu.com/4356-1/mitrevendor-advisoryx_refsource_UBUNTU
- www.debian.org/security/2020/dsa-4682mitrevendor-advisoryx_refsource_DEBIAN
- www.openwall.com/lists/oss-security/2020/04/23/1mitremailing-listx_refsource_MLIST
- gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12519.txtmitrex_refsource_MISC
- lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlmitremailing-listx_refsource_MLIST
- security.netapp.com/advisory/ntap-20210205-0006/mitrex_refsource_CONFIRM
News mentions
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