Description
The isofs_export_encode_fh function in fs/isofs/export.c in the Linux kernel before 3.6 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted application.
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 | linux | 3.2.41-1 | — |
| Debian 13 | linux | 3.2.41-1 | — |
| Debian 12 | linux | 3.2.41-1 | — |
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze3 | DSA-2668-1 |
Advisories 1
- DSA-2668-1 linux-2.6 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- openSUSE-SU-2013:1187 vendor-advisory
- USN-1812-1 vendor-advisory
- MDVSA-2013:176 vendor-advisory
- USN-1829-1 vendor-advisory
- [oss-security] 20130305 CVE Requests (maybe): Linux kernel: various info leaks, some NULL ptr derefs mailing-list
- https://github.com/torvalds/linux/commit/fe685aabf7c8c9f138e5ea900954d295bf229175
- USN-1809-1 vendor-advisory
- USN-1814-1 vendor-advisory
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fe685aabf7c8c9f138e5ea900954d295bf229175
- USN-1813-1 vendor-advisory
- USN-1811-1 vendor-advisory