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Fencer Intel
medium 6.8

CVE-2014-6270 json

Off-by-one error in the snmpHandleUdp function in snmp_core.cc in Squid 2.x and 3.x, when an SNMP port is configured, allows remote attacke…

published 12y ago modified 4mo ago also EUVD-2014-6156

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
23.3%
EPSS 23.3% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

Off-by-one error in the snmpHandleUdp function in snmp_core.cc in Squid 2.x and 3.x, when an SNMP port is configured, allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted UDP SNMP request, which triggers a heap-based buffer overflow.

Patch / fix

  • squid Debian 14, Debian 13, Debian 12 4.1-1

debian advisories DEBIAN-CVE-2014-6270

  • squid3 Ubuntu 14.04 LTS 3.3.8-1ubuntu6.6

ubuntu advisories UBUNTU-CVE-2014-6270

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • squid3 SLES for SAP 11 SP4, SLES 11 SP4 3.1.23-8.16.30.1
  • squid SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +2 more 2.7.STABLE5-2.12.24.2

suse advisories SUSE-SU-2016:2089-1SUSE-SU-2015:1983-1

Is CVE-2014-6270 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-6270 updated cvss 5.1

squid: off-by-one error in snmpHandleUdp() leading to a bss-based buffer overflow (SQUID-2014:3)

  • Red Hat Enterprise Linux 4 squid Red Hat Enterprise Linux 5 squid Red Hat Enterprise Linux 6 squid Red Hat Enterprise Linux 7 squid, squid-sysvinit, squid-migration-script
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

23.32% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.