UpHeron
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Servers and applications

CVE-2013-4115

Buffer overflow in the idnsALookup function in dns_internal.cc in Squid 3.2 through 3.2.11 and 3.3 through 3.3.6 allows remote attackers to cause a denial of service (memory corruption and server termination) via a long name in a DNS lookup request.

Severity
High 7.5
Published
9 Aug 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
44% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
SquidServers and applications · cpe:a:squid-cache:squid
  • Version 3.3.6
  • Version 3.3.5
  • Version 3.3.4
  • Version 3.3.3
All 17 release lines
  • Version 3.2.0.2
  • Version 3.2.0.3
  • Version 3.2.0.4
  • Version 3.2.0.5
  • Version 3.2.0.6
  • Version 3.2.0.7
  • Version 3.2.0.8
  • Version 3.2.0.9
  • Version 3.3.0
  • Version 3.3.0.2
  • Version 3.3.0.3
  • Version 3.3.1
  • Version 3.3.2
  • Version 3.3.3
  • Version 3.3.4
  • Version 3.3.5
  • Version 3.3.6

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-4115
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-4115