Squid vulnerable to Denial of Service attack due to uncontrolled recursion bug
CVE-2024-25111

8.6HIGH

Key Information:

Vendor

Squid-cache

Status
Squid
Vendor
CVE Published:
6 March 2024

What is CVE-2024-25111?

The Squid web proxy cache is susceptible to a Denial of Service (DoS) attack stemming from an uncontrolled recursion issue found in the HTTP Chunked decoder. This vulnerability allows remote attackers to exploit the flaw by sending specially crafted chunked encoded HTTP messages, resulting in service disruptions. The issue has been addressed in Squid version 6.8, with patches available for earlier stable releases in the Squid patch archives. There are no workarounds to mitigate this vulnerability.

Affected Version(s)

squid >= 3.5.27, < 6.8

References

https://github.com/squid-cache/squid/security/advisories/...
x_refsource_CONFIRM
http://www.squid-cache.org/Versions/v6/SQUID-2024_1.patch
x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-ann...

EPSS Score

65% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.