CVE-2019-18676 — Out-of-bounds Write in Squid
Severity
7.5HIGHNVD
EPSS
1.4%
top 19.74%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 26
Latest updateMay 24
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages2 packages
Also affects: Debian Linux 10.0, 9.0, Fedora 30, 31, Ubuntu Linux 16.04, 18.04, 19.04, 19.10