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CVE-2010-2521

Published: 7 September 2010

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.

From the Ubuntu Security Team

Neil Brown discovered that NFSv4 did not correctly check certain write requests. A remote attacker could send specially crafted traffic that could crash the system or possibly gain root privileges.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy
Released (2.6.24-28.80)
jaunty
Released (2.6.28-19.66)
karmic
Released (2.6.31-22.67)
lucid
Released (2.6.32-23.37)
maverick Not vulnerable

upstream
Released (2.6.34-rc6)
Patches:
upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2bc3c1179c781b359d4f2f3439cb3df72afc17fc
hardy: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2521/patches/hardy/linux/0001-nfsd4-bug-in-read_buf.txt
jaunty: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2521/patches/jaunty/linux/0001-nfsd4-bug-in-read_buf.txt
karmic: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2521/patches/karmic/linux/0001-nfsd4-bug-in-read_buf.txt

linux-ec2
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic
Released (2.6.31-307.21)
lucid
Released (2.6.32-309.18)
maverick Ignored
(end of life)
upstream Needs triage

linux-fsl-imx51
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic
Released (2.6.31-112.30)
lucid
Released (2.6.31-608.22)
maverick Does not exist

upstream Needs triage

linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid
Released (2.6.35-25.44~lucid1)
maverick Does not exist

upstream Needs triage

linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper
Released (2.6.15-55.89)
hardy Does not exist

jaunty Does not exist

karmic Does not exist

lucid Does not exist

maverick Does not exist

upstream Needs triage

Patches:




dapper: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2521/patches/dapper/linux/0001-nfsd4-bug-in-read_buf.txt