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Fencer Vulns
medium 6.8

CVE-2009-1579 json

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 exe…

published 2009-05-14 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-1575

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

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.

Patch / fix

  • squirrelmail RHEL 3 1.4.8-13.el3
  • squirrelmail RHEL 4 1.4.8-5.el4_8.5
  • squirrelmail RHEL 5 1.4.8-5.el5_3.7

red hat advisories RHSA-2009:1066

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-2009-1579 updated cvss 7.5

SquirrelMail: Server-side code injection in map_yp_alias username map

  • Red Hat Desktop version 3 squirrelmail 1.4.8-13.el3 Red Hat Enterprise Linux (v. 5 server) squirrelmail 1.4.8-5.el5_3.7 Red Hat Enterprise Linux AS version 3 squirrelmail 1.4.8-13.el3 Red Hat Enterprise Linux AS version 4 squirrelmail 1.4.8-5.el4_8.5 Red Hat Enterprise Linux Desktop version 4 squirrelmail 1.4.8-5.el4_8.5 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) squirrelmail 1.4.8-5.el5_3.7
    +4 more products
    Red Hat Enterprise Linux ES version 3 squirrelmail 1.4.8-13.el3 Red Hat Enterprise Linux ES version 4 squirrelmail 1.4.8-5.el4_8.5 Red Hat Enterprise Linux WS version 3 squirrelmail 1.4.8-13.el3 Red Hat Enterprise Linux WS version 4 squirrelmail 1.4.8-5.el4_8.5
    fixed: vendor fix RHSA-2009:1066

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

Exploit prediction

3.40% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns 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.