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CVE-2012-1502

43
FAUCET Score

CVE-2012-1502 describes a double free vulnerability in PyPAM 0.5.0 and earlier, specifically within the PyPAM_conv function in PAMmodule.c. This flaw allows remote attackers to trigger a denial of service or potentially execute arbitrary code by injecting a NULL byte into a password string. With a CVSS score of 7.5, it is considered highly severe due to its low attack complexity and potential for significant impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code (EDB-18579) exists, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.5.0CPE matchmatch criteria
cpe:2.3:a:pypam:pypam:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
14.29%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-18579 · Mar 10, 2012
This CVE's current EPSS score of 0.1429 is in the 94th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: PyPAM

Vendor Advisories (1)

redhatCVE-2012-1502Low

PyPAM: Double free by processing passwords containing NULL-bytes

Mar 8, 2012

References

lists.opensuse.org / opensuse-updates/2012-04/msg00027.html
secunia.com / advisories/48312
Vendor Advisory
secunia.com / advisories/48332
Vendor Advisory
secunia.com / advisories/48746
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/73857
security.gentoo.org / glsa/201507-09
ubuntu.com / usn/usn-1395-1
debian.org / security/2012/dsa-2430
lsexperts.de / advisories/lse-2012-03-01.txt
Exploit
osvdb.org / 79892