Description
Heap-based buffer overflow in the _zip_readcdir function in zip_open.c in libzip 0.10 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a zip archive with the number of directories set to 0, related to an "incorrect loop construct."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libzip | 0.10.1-1 | — |
| Debian 13 | libzip | 0.10.1-1 | — |
| Debian 12 | libzip | 0.10.1-1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libzip | 1.1.3-1.4 | openSUSE-SU-2024:10113-1 |
Advisories 1
- openSUSE-SU-2024:10113-1 libzip-devel-1.1.3-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- [libzip-discuss] 20120320 libzip-0.10.1 security fix release mailing-list
- [oss-security] 20120321 CVE-2012-1162 / -1163: Incorrect loop construct and numeric overflow in libzip mailing-list
- MDVSA-2012:034 vendor-advisory
- http://www.nih.at/libzip/NEWS.html
- [oss-security] 20120329 Re: CVE-2012-1162 / -1163: Incorrect loop construct and numeric overflow in libzip mailing-list
- GLSA-201203-23 vendor-advisory