CVE-2010-2951
dns_internal.cc in Squid 3.1.6, when IPv6 DNS resolution is not enabled, accesses an invalid...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2010-2951- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2010-2951- Updated
- 2026-11-02
EUVDEUVD-2010-2955 No score
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.
- Record
EUVD-2010-2955- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9vw9-fpw4-vvf6 No score
dns_internal.cc in Squid 3.1.6, when IPv6 DNS resolution is not enabled, accesses an invalid...
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.
- Record
GHSA-9vw9-fpw4-vvf6- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2010-2951 is a medium vulnerability (CVSS 5.0) in Squid-cache Squid, published October 12, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 31.5%, the 98th percentile. No source names a fixed version.
References
openwall.com/lists/oss-security/2010/08/25/6
bugs.squid-cache.org/show_bug.cgi?id=3009
marc.info?l=squid-users&m=128263555724981&w=2
bugzilla.redhat.com/show_bug.cgi?id=626927
Show 7 moreShow less
bazaar.launchpad.net/~squid/squid/3.1/revision/10072
bugs.gentoo.org/show_bug.cgi?id=334263
squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10072.patch
nvd.nist.gov/vuln/detail/CVE-2010-2951
github.com/advisories/GHSA-9vw9-fpw4-vvf6