libzip: integer overflow when processing malformed zip file
Published Jul 12, 2012
6.8
MEDIUMCVSS 2.0
EPSS 2.57%
Description
Integer overflow in the _zip_readcdir function in zip_open.c in libzip 0.10 allows remote attackers to execute arbitrary code via the size and offset values for the central directory in a zip archive, which triggers "improper restrictions of operations within the bounds of a memory buffer" and an information leak.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
php53
Not affected
Red Hat Enterprise Linux 6
libzip
Not affected
Red Hat Enterprise Linux 6
php
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | php53 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | libzip | Not affected | n/a |
| Red Hat Enterprise Linux 6 | php | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of libzip and php as shipped with Red Hat Enterprise Linux 6. This issue did not affect the versions of php53 as shipped with Red Hat Enterprise Linux 5.
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.57% (0.02575) | 84.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.57% (0.02575) | 83.11th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.39% (0.01385) | 78.56th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.96% (0.02959) | 77.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.55% (0.01548) | 80.12th | v4 (v2025.03.14) |
| Dec 12, 2024 | 7.07% (0.07072) | 94.25th | v3 (v2023.03.01) |
| Sep 17, 2024 | 7.07% (0.07072) | 94.12th | v3 (v2023.03.01) |
| May 24, 2024 | 3.47% (0.03472) | 91.52th | v3 (v2023.03.01) |
| May 10, 2024 | 2.07% (0.02070) | 88.97th | v3 (v2023.03.01) |
| Apr 25, 2024 | 1.76% (0.01757) | 87.81th | v3 (v2023.03.01) |
| Mar 15, 2024 | 1.97% (0.01965) | 88.41th | v3 (v2023.03.01) |
| Feb 8, 2024 | 1.89% (0.01888) | 88.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.07% (0.07072) | 92.89th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.52% (0.07525) | 92.75th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.52% (0.07525) | 92.03th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.52% (0.07525) | 80.97th | v2 (v2022.01.01) |
References (10)
- http://nih.at/listarchive/libzip-discuss/msg00252.html mailing-listx_refsource_MLIST
- http://www.gentoo.org/security/en/glsa/glsa-201203-23.xml vendor-advisoryx_refsource_GENTOO
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:034 vendor-advisoryx_refsource_MANDRIVA
- http://www.nih.at/libzip/NEWS.html x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2012/03/21/2 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/03/29/11 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2012-1163 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=803028 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-1163
- https://www.cve.org/CVERecord?id=CVE-2012-1163
| Link | Providers | Tags |
|---|---|---|
| http://nih.at/listarchive/libzip-discuss/msg00252.html | mailing-listx_refsource_MLIST | |
| http://www.gentoo.org/security/en/glsa/glsa-201203-23.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:034 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.nih.at/libzip/NEWS.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2012/03/21/2 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2012/03/29/11 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2012-1163 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=803028 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-1163 | ||
| https://www.cve.org/CVERecord?id=CVE-2012-1163 |
Change history (0)
No recorded changes yet.