Description
drivers/firmware/dell_rbu.c in the Linux kernel before 2.6.27.13, and 2.6.28.x before 2.6.28.2, allows local users to cause a denial of service (system crash) via a read system call that specifies zero bytes from the (1) image_type or (2) packet_size file in /sys/devices/platform/dell_rbu/.
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 | 2.6.26-13lenny2 | DSA-1749-1 |
| Debian 4.0 | fai-kernels | 1.17+etch.24etch2 | DSA-1794-1 |
| Debian 4.0 | linux-2.6 | 2.6.18.dfsg.1-24etch2 | DSA-1794-1 |
| Debian 4.0 | linux-2.6.24 | 2.6.24-6~etchnhalf.8etch1 | DSA-1787-1 |
| Debian 4.0 | user-mode-linux | 2.6.18-1um-2etch.24etch2 | DSA-1794-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-128.1.6.el5 | RHSA-2009:0326 |
| RHEL 4 | kernel +10 | 2.6.9-78.0.17.EL | RHSA-2009:0331 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 1 | kernel-rt +9 | 2.6.24.7-108.el5rt | RHSA-2009:0360 |
Advisories 6
- RHSA-2009:0326 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2009:0331 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-1787-1 linux-2.6.24 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1749-1 linux-2.6 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1794-1 linux-2.6 - multiple vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2009:0360 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- 35390 third-party-advisory
- 34502 third-party-advisory
- RHSA-2009:0331 vendor-advisory
- RHSA-2009:0326 vendor-advisory
- SUSE-SA:2009:010 vendor-advisory
- 37471 third-party-advisory
- RHSA-2009:0360 vendor-advisory
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.13
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.2
- oval:org.mitre.oval:def:10163 vdb-entry signature
- DSA-1749 vendor-advisory
- DSA-1794 vendor-advisory
- 33758 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2009-114.htm
- SUSE-SA:2009:030 vendor-advisory
- USN-751-1 vendor-advisory
- 34252 third-party-advisory
- 35011 third-party-advisory
- 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components mailing-list
- 33428 vdb-entry
- SUSE-SA:2009:031 vendor-advisory
- 33656 third-party-advisory
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.27.y.git%3Ba=commit%3Bh=81156928f8fe31621e467490b9d441c0285998c3
- 34981 third-party-advisory
- 34394 third-party-advisory
- DSA-1787 vendor-advisory
- oval:org.mitre.oval:def:7734 vdb-entry signature
- 34680 third-party-advisory
- ADV-2009-3316 vdb-entry
- 34762 third-party-advisory
- 35394 third-party-advisory