CVE-2019-12854: High severity Squid-Cache Squid vulnerability
Published Aug 15, 2019
·Updated
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.
Affected Software
10 affected componentsFixes available
Squid-Cache Squid>=4.0<=4.7
Debian Debian Linux=10.0
Fedoraproject Fedora=29
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.04
Canonical Ubuntu Linux=19.10
openSUSE Leap=15.0
openSUSE Leap=15.1
debian/squid
4.13-10+deb11u34.13-10+deb11u65.7-2+deb12u55.7-2+deb12u46.13-2+deb13u17.4-1
Remediation
Event History
Aug 15, 2019
CVE Published
via MITRE·04:15 PM
Data Sourced
via MITRE·04:15 PM
Description
Feb 20, 2026
Data Sourced
via Ubuntu·10:42 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Launchpad·10:43 PM
Description
Data Sourced
via Debian·10:43 PM
DescriptionAffected Software
Frequently Asked Questions
1
What is the vulnerability ID for this vulnerability?
The vulnerability ID is CVE-2019-12854.
2
What is the severity level of CVE-2019-12854?
The severity level of CVE-2019-12854 is high.
3
What is the affected software for CVE-2019-12854?
The affected software for CVE-2019-12854 includes Squid cachemgr.cgi 4.0 through 4.7 versions.
4
How can CVE-2019-12854 be exploited?
CVE-2019-12854 can be exploited by accessing unallocated memory in Squid cachemgr.cgi 4.0 through 4.7 versions.
5
How can I fix CVE-2019-12854?
To fix CVE-2019-12854, update Squid to version 4.8-1 or apply the appropriate patches provided by the vendor.