What is CVE-2009-5029?

CVE-2009-5029 is a vulnerability in GNU Glibc, classified under CWE-189. Published 2013-05-02.

Is CVE-2009-5029 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in GNU Glibc

CVE-2009-5029

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.

Published 2013-05-02 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.081 (94.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.081 · newest: 0.081 · change: 0.000

Affected products

GNU Glibc — versions 2.0, 2.0.1, 2.0.2

Weakness classification (CWE)

CWE-189

Public proof-of-concept exploits

References

sourceware.org/ml/libc-alpha/2011-12/msg00037.html (mailing-list, Exploit)
dividead.wordpress.com/2009/06/01/glibc-timezone-integer-overflow/ (Exploit)
sourceware.org/git/
lists.grok.org.uk/pipermail/full-disclosure/2011-December/084452.html (mailing-list)
bugzilla.redhat.com/show_bug.cgi

Frequently asked questions

What is CVE-2009-5029?: CVE-2009-5029 is a vulnerability in GNU Glibc, classified under CWE-189. Published 2013-05-02.
Is CVE-2009-5029 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.