CVE-2009-5029 EXPLOIT
6.8
MEDIUM · CVSS 2.0 · EPSS 8.1% (pctl 95)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 6.8 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| EPSS | 8.07% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-189 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2013-05-02 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| gnu | glibc |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | GNU glibc - Timezone Parsing Remote Integer Overflow | 2009-06-01 |
References
- http://dividead.wordpress.com/2009/06/01/glibc-timezone-integer-overflow/
- 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
- https://bugzilla.redhat.com/show_bug.cgi?id=761245
- http://dividead.wordpress.com/2009/06/01/glibc-timezone-integer-overflow/
- 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
- https://bugzilla.redhat.com/show_bug.cgi?id=761245
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