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Vulnerability record · CVE-2009-5029 · published 2 May 2013

CVE-2009-5029: Gnu glibc vulnerability

Gnu · Glibc

Integer overflow in the __tzfile_read function in glibc before 2.15 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted timezone (TZ) file, as demonstrated using vsftpd.

6.8 CVSS 2.0 Medium EPSS 8.1% · top 5.4% CWE-189 · CWE-189
6.8CVSS 2.0 base score
8.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Integer overflow in the __tzfile_read function in glibc before 2.15 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted timezone (TZ) file, as demonstrated using vsftpd.

AV:N/AC:M/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://dividead.wordpress.com/2009/06/01/glibc-timezone-integer-overflow/ Exploit
http://lists.grok.org.uk/pipermail/full-disclosure/2011-December/084452.html
http://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=97ac2654b2d831acaa18a2b018b0736245903fd2
http://sourceware.org/ml/libc-alpha/2011-12/msg00037.html Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=761245
http://dividead.wordpress.com/2009/06/01/glibc-timezone-integer-overflow/ Exploit
http://lists.grok.org.uk/pipermail/full-disclosure/2011-December/084452.html
http://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=97ac2654b2d831acaa18a2b018b0736245903fd2
http://sourceware.org/ml/libc-alpha/2011-12/msg00037.html Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=761245

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-5029), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.