CVE-2019-12526
high-risk
Published 2019-11-26
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.
Do I need to act?
!
33.6% chance of exploitation in next 30 days
EPSS score — higher than 66% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (11)
Affected Vendors
References (18)
Third Party Advisory
http://www.squid-cache.org/Advisories/SQUID-2019_7.txt
Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1156326
Third Party Advisory
https://security.gentoo.org/glsa/202003-34
Third Party Advisory
https://usn.ubuntu.com/4213-1/
Third Party Advisory
https://www.debian.org/security/2020/dsa-4682
Third Party Advisory
http://www.squid-cache.org/Advisories/SQUID-2019_7.txt
Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1156326
Third Party Advisory
https://security.gentoo.org/glsa/202003-34
Third Party Advisory
https://usn.ubuntu.com/4213-1/
Third Party Advisory
https://www.debian.org/security/2020/dsa-4682
64
/ 100
high-risk
Severity
32/34 · Critical
Exploitability
16/34 · Moderate
Exposure
16/34 · Moderate