CVE-2019-12526

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 26-11-2019 06:15

Last modified: - 26-04-2022 10:07

Total changes: - 3

Description

An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

High

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

9.8

Base score

3.9

5.9

Exploitability score

Impact score

Verification logic

vendor=squid-cache AND product=squid AND versionEndIncluding=3.5.28 AND versionStartIncluding=3.0

vendor=squid-cache AND product=squid AND versionEndIncluding=4.8 AND versionStartIncluding=4.0

vendor=canonical AND product=ubuntu_linux AND version=16.04 AND software_edition=lts

vendor=canonical AND product=ubuntu_linux AND version=18.04 AND software_edition=lts

vendor=canonical AND product=ubuntu_linux AND version=19.04

vendor=canonical AND product=ubuntu_linux AND version=19.10

vendor=fedoraproject AND product=fedora AND version=30

vendor=fedoraproject AND product=fedora AND version=31

vendor=opensuse AND product=leap AND version=15.0

vendor=Debian AND product=debian_linux AND version=8.0

vendor=Debian AND product=debian_linux AND version=9.0

vendor=Debian AND product=debian_linux AND version=10.0

Reference

http://www.squid-cache.org/Advisories/SQUID-2019_7.txt
https://bugzilla.suse.com/show_bug.cgi?id=1156326
USN-4213-1-Third Party Advisory
FEDORA-2019-0b16cbdd0e-Mailing List, Third Party Advisory
FEDORA-2019-9538783033-Mailing List, Third Party Advisory
[debian-lts-announce] 20191210 [SECURITY] [DLA 2028-1] squid3 security update-Mailing List, Third Party Advisory
GLSA-202003-34-Third Party Advisory
DSA-4682-Third Party Advisory
[debian-lts-announce] 20200710 [SECURITY] [DLA 2278-1] squid3 security update-Mailing List, Third Party Advisory

Keywords

CVE-2019-12526

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2019-12526

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures