Vulnerability Description
An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | >= 3.0, <= 3.5.28 |
| Canonical | Ubuntu Linux | 16.04 |
| Fedoraproject | Fedora | 30 |
| Opensuse | Leap | 15.0 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://www.squid-cache.org/Advisories/SQUID-2019_7.txtThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1156326Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00011.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202003-34Third Party Advisory
- https://usn.ubuntu.com/4213-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4682Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2019_7.txtThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1156326Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00011.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2019-12526?
CVE-2019-12526 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fai...
How severe is CVE-2019-12526?
CVE-2019-12526 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2019-12526?
Check the references section above for vendor advisories and patch information. Affected products include: Squid-Cache Squid, Canonical Ubuntu Linux, Fedoraproject Fedora, Opensuse Leap, Debian Debian Linux.