Description
The Bluetooth protocol stack in the Linux kernel before 3.6 does not properly initialize certain structures, which allows local users to obtain sensitive information from kernel stack memory via a crafted application that targets the (1) L2CAP or (2) HCI implementation.
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 | 3.2.30-1 | — |
| Debian 13 | linux | 3.2.30-1 | — |
| Debian 12 | linux | 3.2.30-1 | — |
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze3 | DSA-2668-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-358.18.1.el6 | RHSA-2013:1173 |
| RHEL 5 | kernel +12 | 2.6.18-348.12.1.el5 | RHSA-2013:1034 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 3 | perf +9 | 2.6.32-358.118.1.openstack.el6 | RHSA-2013:1195 |
Advisories 4
- RHSA-2013:1173 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2668-1 linux-2.6 - several Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2013:1195 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2013:1034 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- USN-1805-1 vendor-advisory
- [oss-security] 20130305 CVE Requests (maybe): Linux kernel: various info leaks, some NULL ptr derefs mailing-list
- USN-1808-1 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=792039c73cf176c8e39a6e8beef2c94ff46522ed
- RHSA-2013:1173 vendor-advisory
- https://github.com/torvalds/linux/commit/792039c73cf176c8e39a6e8beef2c94ff46522ed
- https://github.com/torvalds/linux/commit/e15ca9a0ef9a86f0477530b0f44a725d67f889ee
- 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=e15ca9a0ef9a86f0477530b0f44a725d67f889ee
- https://github.com/torvalds/linux/commit/3f68ba07b1da811bf383b4b701b129bfcb2e4988
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3f68ba07b1da811bf383b4b701b129bfcb2e4988