Description
The udp_queue_rcv_skb function in net/ipv4/udp.c in a certain Red Hat build of the Linux kernel 2.6.18 in Red Hat Enterprise Linux (RHEL) 5 allows attackers to cause a denial of service (deadlock and system hang) by sending UDP traffic to a socket that has a crafted socket filter, a related issue to CVE-2010-4158.
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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-194.32.1.el5 | RHSA-2011:0004 |
Advisories 1
- RHSA-2011:0004 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- [netdev] 20101110 Re: [PATCH] Prevent reading uninitialized memory with socket filters mailing-list
- 42789 third-party-advisory
- ADV-2011-0024 vdb-entry
- RHSA-2011:0004 vendor-advisory
- kernel-udpqueuercvskb-dos(64497) vdb-entry
- 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console mailing-list
- 46397 third-party-advisory
- 20101118 Re: Kernel 0-day mailing-list
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- https://bugzilla.redhat.com/show_bug.cgi?id=651698
- https://bugzilla.redhat.com/show_bug.cgi?id=652534