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CVE-2019-12854

Published: 15 August 2019

Due to incorrect string termination, Squid cachemgr.cgi 4.0 through 4.7 may access unallocated memory. On systems with memory access protections, this can cause the CGI process to terminate unexpectedly, resulting in a denial of service for all clients using it.

Notes

AuthorNote
mdeslaur
attacker needs access to cachemgr.cgi to cause a DoS
4.x only

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
squid3
Launchpad, Ubuntu, Debian
upstream Not vulnerable
(debian: Vulnerable code only in 4.x series)
xenial Not vulnerable
(code not present)
bionic Not vulnerable
(code not present)
disco Does not exist

eoan Does not exist

squid
Launchpad, Ubuntu, Debian
upstream
Released (4.8-1)
xenial Does not exist

bionic Does not exist

disco
Released (4.4-1ubuntu2.3)
eoan Not vulnerable
(4.8-1ubuntu2)
Patches:
upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-2981a957716c61ff7e21eee1d7d6eb5a237e466d.patch

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H