Denial of Service Vulnerability in Squid Proxy Software
CVE-2020-8517

7.5HIGH

Key Information:

Vendor

Squid-cache

Status
Squid
Vendor
CVE Published:
4 February 2020

What is CVE-2020-8517?

An issue has been identified in Squid versions before 4.10 where incorrect input validation in the NTLM authentication credentials parser can cause memory writes outside the intended buffer. This flaw can lead to unexpected termination of the helper process and, consequently, the Squid process itself, resulting in a denial of service for all connected clients utilizing the proxy.

References

http://www.squid-cache.org/Advisories/SQUID-2020_3.txt
x_refsource_MISC
http://www.squid-cache.org/Versions/v4/changesets/squid-4...
x_refsource_MISC
https://usn.ubuntu.com/4289-1/
vendor-advisoryx_refsource_UBUNTU

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.