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Fencer Intel
medium 5.0

CVE-2014-5461 json

Buffer overflow in the vararg functions in ldo.c in Lua 5.1 through 5.2.x before 5.2.3 allows context-dependent attackers to cause a denial…

published 2014-09-04 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-5348

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
12.0%
EPSS 12.0% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Buffer overflow in the vararg functions in ldo.c in Lua 5.1 through 5.2.x before 5.2.3 allows context-dependent attackers to cause a denial of service (crash) via a small number of arguments to a function with a large number of fixed arguments.

Patch / fix

  • lua5.1 Debian 14, Debian 13, Debian 12 5.1.5-7
  • lua5.2 Debian 14, Debian 13, Debian 12 5.2.3-1

debian advisories DEBIAN-CVE-2014-5461

  • lua5.1 Ubuntu 14.04 LTS 5.1.5-5ubuntu0.1

ubuntu advisories UBUNTU-CVE-2014-5461

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

  • moarvm openSUSE Tumbleweed 2025.05-1.1

opensuse advisories openSUSE-SU-2025:15247-1

  • ceph Azure Linux 3.0 18.2.2-1

azure linux advisories AZL-41108

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2014-5461 updated cvss 4.4

lua: overflow flaw in vararg functions

  • Red Hat Enterprise Linux 6 lua Red Hat Enterprise Linux 7 lua
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 rpm
    not affected: vulnerable code not present

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

12.03% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • openwall.com http://www.openwall.com/lists/oss-security/2014/08/21/4 referenced PoC, tagged "exploit" by a source, unverified
  • openwall.com http://www.openwall.com/lists/oss-security/2014/08/21/1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/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.