Denial of Service (DoS) Affecting squid package, versions [,3.1.7)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
31.47% (99th percentile)

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  • Snyk IDSNYK-UNMANAGED-SQUID-2370921
  • published26 Jan 2022
  • disclosed12 Oct 2010
  • creditUnknown

Introduced: 12 Oct 2010

CVE-2010-2951  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade squid to version 3.1.7 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS) dns_internal.cc in Squid 3.1.6, when IPv6 DNS resolution is not enabled, accesses an invalid socket during an IPv4 TCP DNS query, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via vectors that trigger an IPv4 DNS response with the TC bit set.

CVSS Base Scores

version 3.1