Description
Multiple buffer overflows in fs/nfsd/nfs4xdr.c in the XDR implementation in the NFS server in the Linux kernel before 2.6.34-rc6 allow remote attackers to cause a denial of service (panic) or possibly execute arbitrary code via a crafted NFSv4 compound WRITE request, related to the read_buf and nfsd4_decode_compound functions.
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 | 2.6.26-24lenny1 | DSA-2094-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-194.11.1.el5 | RHSA-2010:0610 |
| RHEL 4 | kernel +10 | 2.6.9-89.0.28.EL | RHSA-2010:0606 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5.4 EUS | kernel +12 | 2.6.18-164.30.1.el5 | RHSA-2010:0907 |
| RHEL 5.3 EUS | kernel +12 | 2.6.18-128.26.1.el5 | RHSA-2010:0893 |
| Red Hat MRG 1 | kernel-rt +10 | 2.6.24.7-161.el5rt | RHSA-2010:0631 |
Advisories 6
- RHSA-2010:0631 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0610 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2010:0606 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2094-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2010:0907 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2010:0893 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- RHSA-2010:0610 vendor-advisory
- RHSA-2010:0893 vendor-advisory
- USN-1000-1 vendor-advisory
- [oss-security] 20100707 CVE request - kernel: nfsd4: bug in read_buf mailing-list
- RHSA-2010:0606 vendor-advisory
- MDVSA-2010:198 vendor-advisory
- RHSA-2010:0907 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=612028
- SUSE-SA:2010:040 vendor-advisory
- MDVSA-2011:051 vendor-advisory
- 43315 third-party-advisory
- DSA-2094 vendor-advisory
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2bc3c1179c781b359d4f2f3439cb3df72afc17fc
- 1024286 vdb-entry
- 42249 vdb-entry
- ADV-2010-3050 vdb-entry
- 20110211 VMSA-2011-0003 Third party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX mailing-list
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.34/ChangeLog-2.6.34-rc6
- [oss-security] 20100708 Re: CVE request - kernel: nfsd4: bug in read_buf mailing-list