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Fencer Intel
high 7.5

CVE-2012-1502 in the critical feed json

Double free vulnerability in the PyPAM_conv in PAMmodule.c in PyPam 0.5.0 and earlier allows remote attackers to cause a denial of service…

published 2012-06-16 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1520

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.1%
EPSS 14.1% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

Double free vulnerability in the PyPAM_conv in PAMmodule.c in PyPam 0.5.0 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a NULL byte in a password string.

Patch / fix

  • python-pam Debian 14, Debian 13, Debian 12 0.4.2-13

debian advisories DEBIAN-CVE-2012-1502

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-2012-1502 updated cvss 4.3

PyPAM: Double free by processing passwords containing NULL-bytes

  • Red Hat Enterprise Linux 6 PyPAM
    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

Timeline

  1. First public exploit (EDB-18579)
  2. Published

Exploit prediction

14.14% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-18579 PyPAM Python bindings for PAM - Double-Free Corruption dos, 2012-03-10
  • lsexperts.de http://www.lsexperts.de/advisories/lse-2012-03-01.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-399 Resource Management Errors

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.