CVE-2019-18676
Published · Updated
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 9.2%
exploitation probability
9.2%top 5% of all CVEs
observed exploitation
nono source reports it
An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.
Affected products
n/a · n/aReferences
https://bugzilla.suse.com/show_bug.cgi?id=1156329https://github.com/squid-cache/squid/pull/275https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlhttps://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://usn.ubuntu.com/4213-1/https://usn.ubuntu.com/4446-1/https://www.debian.org/security/2020/dsa-4682http://www.squid-cache.org/Advisories/SQUID-2019_8.txthttp://www.squid-cache.org/Versions/v4/changesets/squid-4-fbbdf75efd7a5cc244b4886a9d42ea458c5a3a73.patch