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CVE-2019-12854

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4213-1
Posted Dec 4, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4213-1 - Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled certain URN requests. A remote attacker could possibly use this issue to bypass access checks and access restricted servers. This issue was only addressed in Ubuntu 19.04 and Ubuntu 19.10. Jeriko One discovered that Squid incorrectly handed URN responses. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-12523, CVE-2019-12526, CVE-2019-12854, CVE-2019-18676, CVE-2019-18677, CVE-2019-18678, CVE-2019-18679
MD5 | 7bbae365187bfb36c6c93c9790cd822a
Debian Security Advisory 4507-1
Posted Aug 26, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4507-1 - Several vulnerabilities were discovered in Squid, a fully featured web proxy cache. The flaws in the HTTP Digest Authentication processing, the HTTP Basic Authentication processing and in the cachemgr.cgi allowed remote attackers to perform denial of service and cross-site scripting attacks, and potentially the execution of arbitrary code.

tags | advisory, remote, web, denial of service, arbitrary, cgi, vulnerability, xss
systems | linux, debian
advisories | CVE-2019-12525, CVE-2019-12527, CVE-2019-12529, CVE-2019-12854, CVE-2019-13345
MD5 | 0b6d68d6e455fb14945370ed3a945be0
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