High severity · published Dec 4, 2023
CVE-2023-49285
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more
7.5
CVSS
88.1%
EPSS
No
On KEV
Description
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)88.1% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SQ
Squid · Squid-cache
through 6.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-49285
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-49285
Broken Link
http://www.squid-cache.org/Versions/v5/SQUID-2023_7.patch
Broken Link
http://www.squid-cache.org/Versions/v6/SQUID-2023_7.patch
Patch
https://github.com/squid-cache/squid/commit/77b3fb4df0f126784d5fd4967c28ed40eb8d521b
Patch
https://github.com/squid-cache/squid/commit/deee944f9a12c9fd399ce52f3e2526bb573a9470
Vendor Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-8w9r-p88v-mmx9
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html
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