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Vulnerability record · CVE-2006-0056 · published 13 February 2006

CVE-2006-0056: Pam-mysql memory buffer overflow vulnerability

PPam Mysql · Pam Mysql

Double free vulnerability in the authentication and authentication token alteration code in PAM-MySQL 0.6.x before 0.6.2 and 0.7.x before 0.7pre3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted passwords, which lead to a double free of a pointer that was created by the pam_get_item function. NOTE: this issue only occurs in certain configurations in which there are multiple PAM modules, PAM-MySQL is not evaluated first, and there are no requisite modules before PAM-MySQL.

7.5 CVSS 2.0 High EPSS 6.3% · top 6.6% CWE-119 · Memory buffer overflow
7.5CVSS 2.0 base score
6.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References
16 Jun 2026Last modified by NVD

Description

Double free vulnerability in the authentication and authentication token alteration code in PAM-MySQL 0.6.x before 0.6.2 and 0.7.x before 0.7pre3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted passwords, which lead to a double free of a pointer that was created by the pam_get_item function. NOTE: this issue only occurs in certain configurations in which there are multiple PAM modules, PAM-MySQL is not evaluated first, and there are no requisite modules before PAM-MySQL.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://jvn.jp/cert/JVNVU%23693909/index.html
http://secunia.com/advisories/18598 PatchVendor Advisory
http://secunia.com/advisories/20690 Vendor Advisory
http://securitytracker.com/id?1015603 Patch
http://sourceforge.net/forum/forum.php?forum_id=499394
http://www.gentoo.org/security/en/glsa/glsa-200606-18.xml
http://www.kb.cert.org/vuls/id/693909 PatchThird Party AdvisoryUS Government Resource
http://www.osvdb.org/22994
http://www.osvdb.org/22995
http://www.securityfocus.com/bid/16564 Patch
http://www.vupen.com/english/advisories/2006/0490
http://jvn.jp/cert/JVNVU%23693909/index.html
http://secunia.com/advisories/18598 PatchVendor Advisory
http://secunia.com/advisories/20690 Vendor Advisory
http://securitytracker.com/id?1015603 Patch
http://sourceforge.net/forum/forum.php?forum_id=499394
http://www.gentoo.org/security/en/glsa/glsa-200606-18.xml
http://www.kb.cert.org/vuls/id/693909 PatchThird Party AdvisoryUS Government Resource
http://www.osvdb.org/22994
http://www.osvdb.org/22995
http://www.securityfocus.com/bid/16564 Patch
http://www.vupen.com/english/advisories/2006/0490

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Source: NIST National Vulnerability Database (record CVE-2006-0056), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.