Description
Heap-based buffer overflow in the bcm_connect function in net/can/bcm.c (aka the Broadcast Manager) in the Controller Area Network (CAN) implementation in the Linux kernel before 2.6.36.2 on 64-bit platforms might allow local users to cause a denial of service (memory corruption) via a connect operation.
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 5.0 | linux-2.6 | 2.6.26-26lenny1 | DSA-2126-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +14 | 2.6.32-71.14.1.el6 | RHSA-2011:0007 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 1 | perf +10 | 2.6.33.7-rt29.47.el5rt | RHSA-2010:0958 |
Advisories 3
- RHSA-2011:0007 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0958 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2126-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- SUSE-SA:2011:004 vendor-advisory
- 42778 third-party-advisory
- [oss-security] 20101220 CVE request: kernel: CAN information leak, 2nd attempt mailing-list
- 42801 third-party-advisory
- SUSE-SA:2011:002 vendor-advisory
- [oss-security] 20101220 Re: CVE request: kernel: CAN information leak, 2nd attempt mailing-list
- [oss-security] 20101220 Re: CVE request: kernel: CAN information leak, 2nd attempt mailing-list
- FEDORA-2010-18983 vendor-advisory
- [oss-security] 20101220 Re: CVE request: kernel: CAN information leak, 2nd attempt mailing-list
- SUSE-SA:2011:001 vendor-advisory
- 42932 third-party-advisory
- [oss-security] 20101104 Re: CVE request: kernel: CAN information leak mailing-list
- RHSA-2011:0007 vendor-advisory
- ADV-2011-0124 vdb-entry
- SUSE-SA:2011:007 vendor-advisory
- ADV-2010-3321 vdb-entry
- [netdev] 20101102 [SECURITY] CAN info leak/minor heap overflow mailing-list
- ADV-2011-0298 vdb-entry
- RHSA-2010:0958 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2
- https://bugzilla.redhat.com/show_bug.cgi?id=649695
- 42890 third-party-advisory
- ADV-2011-0012 vdb-entry
- MDVSA-2011:029 vendor-advisory
- 42745 third-party-advisory
- [oss-security] 20101220 Re: CVE request: kernel: CAN information leak, 2nd attempt mailing-list
- [oss-security] 20101103 CVE request: kernel: CAN information leak mailing-list
- [netdev] 20101110 can-bcm: fix minor heap overflow mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0597d1b99fcfc2c0eada09a698f85ed413d4ba84
- DSA-2126 vendor-advisory