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CVE-2021-31806

Published: May 27, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-116
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
95.8%
Top 0.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request processing.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-116

Affected Products

n/an/a
squidsquid-cache
On-premNetwork Device
Networking Infrastructure / load-balancer-proxy
debian linuxdebian
On-premOS
Operating Systems / linux-distro
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
cloud managernetappHardware Firmware
squid-cacheoss-projectNetworking Infrastructureaka squid, squid cache
debianoss-projectGBOperating Systemsaka debian gnu/linux
fedoraprojectoss-projectUSOperating Systemsaka fedora project
netappcommercialUSHardware Firmware
and 7 more affected products View all →

Exploitability

Official Patch Available

References

https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf
github.com
http://www.squid-cache.org/Versions/v4/changesets/squid-4-e7cf864f938f24eea8af0692c04d16790983c823.patch
squid-cache.org
https://www.debian.org/security/2021/dsa-4924
debian.org
and 16 more references View all →

Timeline

Published
May 27, 2021
Last Updated
Nov 21, 2024

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