glibc: __tzfile_read integer overflow to buffer overflow
Published May 2, 2013
6.8
MEDIUMCVSS 2.0
EPSS 8.07%
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.
Affected products
No data.
- ≤ 2.14
- 2.0
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.1
- 2.1.1
- 2.1.1.6
- 2.1.2
- 2.1.3
- 2.1.9
- 2.13
No data.
Red Hat Enterprise Linux 4
glibc-0:2.3.4-2.57
Fixed · RHSA-2012:0125
Red Hat Enterprise Linux 5
glibc-0:2.5-65.el5_7.3
Fixed · RHSA-2012:0126
Red Hat Enterprise Linux 6
glibc-0:2.12-1.47.el6_2.5
Fixed · RHSA-2012:0058
Red Hat Enterprise Linux 4
compat-glibc
Affected
Red Hat Enterprise Linux 5
compat-glibc
Affected
Red Hat Enterprise Linux 6
compat-glibc
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | glibc-0:2.3.4-2.57 | Fixed | RHSA-2012:0125 |
| Red Hat Enterprise Linux 5 | glibc-0:2.5-65.el5_7.3 | Fixed | RHSA-2012:0126 |
| Red Hat Enterprise Linux 6 | glibc-0:2.12-1.47.el6_2.5 | Fixed | RHSA-2012:0058 |
| Red Hat Enterprise Linux 4 | compat-glibc | Affected | n/a |
| Red Hat Enterprise Linux 5 | compat-glibc | Affected | n/a |
| Red Hat Enterprise Linux 6 | compat-glibc | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 8.07% (0.08073) | 94.63th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.07% (0.08073) | 94.05th | v5 (v2026.06.15) |
| Apr 12, 2026 | 2.77% (0.02765) | 86.03th | v4 (v2025.03.14) |
| Jan 9, 2026 | 4.97% (0.04968) | 89.35th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.77% (0.02765) | 84.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.64% (0.10644) | 88.77th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.77% (0.02765) | 85.07th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.74% (0.00745) | 81.59th | v3 (v2023.03.01) |
| May 22, 2024 | 0.84% (0.00838) | 82.06th | v3 (v2023.03.01) |
| Sep 25, 2023 | 0.84% (0.00838) | 80.05th | v3 (v2023.03.01) |
| May 1, 2023 | 0.74% (0.00737) | 78.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.61% (0.00612) | 75.38th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.17% (0.03167) | 83.93th | v2 (v2022.01.01) |
| Feb 13, 2023 | 3.17% (0.03167) | 83.50th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.85% (0.04852) | 89.00th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.17% (0.03167) | 82.35th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.17% (0.03167) | 65.03th | v2 (v2022.01.01) |
References (8)
- http://dividead.wordpress.com/2009/06/01/glibc-timezone-integer-overflow/ x_refsource_MISCExploit
- http://lists.grok.org.uk/pipermail/full-disclosure/2011-December/084452.html mailing-listx_refsource_FULLDISC
- http://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=97ac2654b2d831acaa18a2b018b0736245903fd2 x_refsource_MISC
- http://sourceware.org/ml/libc-alpha/2011-12/msg00037.html mailing-listx_refsource_MLISTExploit
- https://access.redhat.com/security/cve/CVE-2009-5029 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=761245 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-5029
- https://www.cve.org/CVERecord?id=CVE-2009-5029
| Link | Providers | Tags |
|---|---|---|
| http://dividead.wordpress.com/2009/06/01/glibc-timezone-integer-overflow/ | x_refsource_MISCExploit | |
| http://lists.grok.org.uk/pipermail/full-disclosure/2011-December/084452.html | mailing-listx_refsource_FULLDISC | |
| http://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=97ac2654b2d831acaa18a2b018b0736245903fd2 | x_refsource_MISC | |
| http://sourceware.org/ml/libc-alpha/2011-12/msg00037.html | mailing-listx_refsource_MLISTExploit | |
| https://access.redhat.com/security/cve/CVE-2009-5029 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=761245 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2009-5029 | ||
| https://www.cve.org/CVERecord?id=CVE-2009-5029 |
Change history (0)
No recorded changes yet.