Description
The Unidirectional Lightweight Encapsulation (ULE) decapsulation component in dvb-core/dvb_net.c in the dvb driver in the Linux kernel 2.6.17.8 allows remote attackers to cause a denial of service (crash) via an SNDU length of 0 in a ULE packet.
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 3.1 | kernel-source-2.6.8 | 2.6.8-16sarge7 | DSA-1304-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +8 | 2.6.9-42.0.3.EL | RHSA-2006:0689 |
Advisories 2
- RHSA-2006:0689 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1304-1 kernel-source-2.6.8 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- [lkml-patch] 20060821 dvb-core: Proper handling ULE SNDU length of 0 mailing-list
- SUSE-SA:2006:079 vendor-advisory
- 22441 third-party-advisory
- 22292 third-party-advisory
- RHSA-2006:0689 vendor-advisory
- 20061017 rPSA-2006-0194-1 kernel mailing-list
- oval:org.mitre.oval:def:9775 vdb-entry signature
- 19939 vdb-entry
- MDKSA-2006:182 vendor-advisory
- 22382 third-party-advisory
- ADV-2006-3551 vdb-entry
- 23474 third-party-advisory
- USN-489-1 vendor-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2006-249.htm
- 20070615 rPSA-2007-0124-1 kernel xen mailing-list
- https://issues.rpath.com/browse/RPL-721
- 22945 third-party-advisory
- DSA-1304 vendor-advisory
- 25714 third-party-advisory
- 21820 third-party-advisory
- 25691 third-party-advisory
- 26139 third-party-advisory