Description
net/dccp/ccid.h in the Linux kernel before 3.5.4 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) by leveraging the CAP_NET_ADMIN capability for a certain (1) sender or (2) receiver getsockopt call.
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 | 3.2.29-1 | — |
| Debian 13 | linux | 3.2.29-1 | — |
| Debian 12 | linux | 3.2.29-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-358.6.1.el6 | RHSA-2013:0744 |
Advisories 1
- RHSA-2013:0744 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- https://github.com/torvalds/linux/commit/276bdb82dedb290511467a5a4fdbe9f0b52dce6f
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.4
- https://bugzilla.redhat.com/show_bug.cgi?id=919164
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=276bdb82dedb290511467a5a4fdbe9f0b52dce6f
- RHSA-2013:0744 vendor-advisory
- [oss-security] 20130307 Re: CVE Requests (maybe): Linux kernel: various info leaks, some NULL ptr derefs mailing-list