CVE-2009-1579: The map_yp_alias function in… (CVSS 6.8)

Description

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail before 1.7 allows remote attackers to execute arbitrary commands via shell metacharacters in a username string that is used by the ypmatch program.

Exploit likelihood

3.40%Down 0.5 points since Feb 4, 2022

Affected products

squirrelmail

Affected packages

Affected packages
Package	Affected	Fixed
`squirrelmail` Debian:4.0 From an advisory covering 4 CVEs	before 2:1.4.9a-4, plus listed versions 2:1.4.9a-12:1.4.9a-22:1.4.9a-3	2:1.4.9a-4
`squirrelmail` Debian:5.0 From an advisory covering 4 CVEs	before 2:1.4.15-4+lenny1, plus listed versions 2:1.4.15-4	2:1.4.15-4+lenny1
`squirrelmail` Red Hat:enterprise_linux:3::as From an advisory covering 3 CVEs	before 0:1.4.8-13.el3	0:1.4.8-13.el3
`squirrelmail` Red Hat:enterprise_linux:3::desktop From an advisory covering 3 CVEs	before 0:1.4.8-13.el3	0:1.4.8-13.el3
`squirrelmail` Red Hat:enterprise_linux:3::es From an advisory covering 3 CVEs	before 0:1.4.8-13.el3	0:1.4.8-13.el3
`squirrelmail` Red Hat:enterprise_linux:3::ws From an advisory covering 3 CVEs	before 0:1.4.8-13.el3	0:1.4.8-13.el3
`squirrelmail` Red Hat:enterprise_linux:4::as From an advisory covering 3 CVEs	before 0:1.4.8-5.el4_8.5	0:1.4.8-5.el4_8.5
`squirrelmail` Red Hat:enterprise_linux:4::desktop From an advisory covering 3 CVEs	before 0:1.4.8-5.el4_8.5	0:1.4.8-5.el4_8.5
`squirrelmail` Red Hat:enterprise_linux:4::es From an advisory covering 3 CVEs	before 0:1.4.8-5.el4_8.5	0:1.4.8-5.el4_8.5
`squirrelmail` Red Hat:enterprise_linux:4::ws From an advisory covering 3 CVEs	before 0:1.4.8-5.el4_8.5	0:1.4.8-5.el4_8.5
`squirrelmail` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 3 CVEs	before 0:1.4.8-5.el5_3.7	0:1.4.8-5.el5_3.7
`squirrelmail` Red Hat:enterprise_linux:5::server From an advisory covering 3 CVEs	before 0:1.4.8-5.el5_3.7	0:1.4.8-5.el5_3.7

What each source reports

NVD Score used6.8

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail before 1.7 allows remote attackers to execute arbitrary commands via shell metacharacters in a username string that is used by the ypmatch program.

Record: CVE-2009-1579
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-94
Updated: 2026-11-02

CVE ListNo score

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail before 1.7 allows remote attackers to execute arbitrary commands via shell metacharacters in a username string that is used by the ypmatch program.

Record: CVE-2009-1579
Updated: 2026-11-02

EUVDEUVD-2009-1575No score

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail before 1.7 allows remote attackers to execute arbitrary commands via shell metacharacters in a username string that is used by the ypmatch program.

Record: EUVD-2009-1575
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gff5-24h3-hxcwNo score

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail...

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail before 1.7 allows remote attackers to execute arbitrary commands via shell metacharacters in a username string that is used by the ypmatch program.

Record: GHSA-gff5-24h3-hxcw
Weakness: CWE-94
Updated: 2026-11-02

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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