PyPAM: Double free by processing passwords containing NULL-bytes
Published Jun 16, 2012
7.5
HIGHCVSS 2.0
EPSS 14.29%
Description
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.
Affected products
Remediation
Red Hat statement
The Red Hat Security Response Team has rated this issue as having low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 14.29% (0.14294) | 96.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 14.29% (0.14294) | 96.14th | v5 (v2026.06.15) |
| May 8, 2026 | 25.64% (0.25639) | 96.28th | v4 (v2025.03.14) |
| Jul 13, 2025 | 22.93% (0.22926) | 95.64th | v4 (v2025.03.14) |
| Mar 30, 2025 | 31.96% (0.31958) | 96.43th | v4 (v2025.03.14) |
| Mar 29, 2025 | 47.05% (0.47049) | 96.59th | v4 (v2025.03.14) |
| Mar 17, 2025 | 31.96% (0.31958) | 96.42th | v4 (v2025.03.14) |
| Dec 17, 2024 | 77.75% (0.77749) | 98.45th | v3 (v2023.03.01) |
| Dec 15, 2024 | 57.80% (0.57798) | 97.83th | v3 (v2023.03.01) |
| Oct 23, 2024 | 53.45% (0.53452) | 97.68th | v3 (v2023.03.01) |
| Jul 5, 2024 | 50.16% (0.50157) | 97.54th | v3 (v2023.03.01) |
| Jan 14, 2024 | 56.17% (0.56168) | 97.38th | v3 (v2023.03.01) |
| Nov 11, 2023 | 48.53% (0.48532) | 97.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 49.53% (0.49531) | 96.89th | v3 (v2023.03.01) |
| Mar 6, 2023 | 35.20% (0.35205) | 97.82th | v2 (v2022.01.01) |
| Nov 30, 2022 | 35.20% (0.35205) | 97.78th | v2 (v2022.01.01) |
| Aug 30, 2022 | 36.00% (0.36005) | 97.75th | v2 (v2022.01.01) |
| May 29, 2022 | 36.81% (0.36812) | 97.76th | v2 (v2022.01.01) |
| Feb 4, 2022 | 38.13% (0.38134) | 97.24th | v2 (v2022.01.01) |
References (14)
- http://lists.opensuse.org/opensuse-updates/2012-04/msg00027.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/48312 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/48332 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/48746 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://ubuntu.com/usn/usn-1395-1 vendor-advisoryx_refsource_UBUNTU
- http://www.debian.org/security/2012/dsa-2430 vendor-advisoryx_refsource_DEBIAN
- http://www.lsexperts.de/advisories/lse-2012-03-01.txt x_refsource_MISCExploit
- http://www.osvdb.org/79892 vdb-entryx_refsource_OSVDB
- https://access.redhat.com/security/cve/CVE-2012-1502 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=801116 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/73857 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2012-1502
- https://security.gentoo.org/glsa/201507-09 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2012-1502
Change history (0)
No recorded changes yet.