VulnerabilityModified
CVE-2019-12526
URN response handling in Squid suffers from a heap-based buffer overflow.
CRITICAL 9.8EPSS 20.3%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 20.3%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 20.25% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- squid-cache/squid · canonical/ubuntu linux · fedoraproject/fedora · opensuse/leap · debian/debian linux
- Source
- cve@mitre.org
References
- http://www.squid-cache.org/Advisories/SQUID-2019_7.txtThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1156326Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00011.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/
- 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 Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00011.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.