CVEvulnerability
CVE-2019-12519
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-04-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-787
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.
Affected configurations
• squid-cache squid (>= 3.0 <= 3.5.28)
• squid-cache squid (>= 4.0 <= 4.10)
• squid-cache squid (>= 5.0 <= 5.0.1)
• debian debian linux 9.0
• debian debian linux 10.0
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 19.10
• canonical ubuntu linux 20.04
• opensuse leap 15.1
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/04/23/1 Mailing List, Third Party Advisory
- https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12519.txt Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202005-05 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210205-0006/ Third Party Advisory
- https://usn.ubuntu.com/4356-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4682 Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/04/23/1 Mailing List, Third Party Advisory
- https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12519.txt Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202005-05 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210205-0006/ Third Party Advisory
- https://usn.ubuntu.com/4356-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4682 Third Party Advisory