PublicDateAtUSN: 2010-09-07
Candidate: CVE-2010-2521
PublicDate: 2010-09-07 17:00:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2521
 https://ubuntu.com/security/notices/USN-1000-1
 https://ubuntu.com/security/notices/USN-1074-1
 https://ubuntu.com/security/notices/USN-1074-2
 https://ubuntu.com/security/notices/USN-1083-1
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.
Ubuntu-Description:
 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.
Notes:
Bugs:
Priority: medium
Discovered-by:
Assigned-to: bradf
CVSS: 

Patches_linux-source-2.6.15:
 dapper: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2521/patches/dapper/linux/0001-nfsd4-bug-in-read_buf.txt
upstream_linux-source-2.6.15: needs-triage
dapper_linux-source-2.6.15: released (2.6.15-55.89)
hardy_linux-source-2.6.15: DNE
jaunty_linux-source-2.6.15: DNE
karmic_linux-source-2.6.15: DNE
lucid_linux-source-2.6.15: DNE
maverick_linux-source-2.6.15: DNE
devel_linux-source-2.6.15: DNE

Patches_linux:
  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
upstream_linux: released (2.6.34-rc6)
dapper_linux: DNE
hardy_linux: released (2.6.24-28.80)
jaunty_linux: released (2.6.28-19.66)
karmic_linux: released (2.6.31-22.67)
lucid_linux: released (2.6.32-23.37)
maverick_linux: not-affected
devel_linux: not-affected

Patches_linux-fsl-imx51:
upstream_linux-fsl-imx51: needs-triage
dapper_linux-fsl-imx51: DNE
hardy_linux-fsl-imx51: DNE
karmic_linux-fsl-imx51: released (2.6.31-112.30)
lucid_linux-fsl-imx51: released (2.6.31-608.22)
maverick_linux-fsl-imx51: DNE
devel_linux-fsl-imx51: DNE

Patches_linux-ec2:
upstream_linux-ec2: needs-triage
dapper_linux-ec2: DNE
hardy_linux-ec2: DNE
karmic_linux-ec2: released (2.6.31-307.21)
lucid_linux-ec2: released (2.6.32-309.18)
maverick_linux-ec2: ignored (binary supplied by "linux" now)
devel_linux-ec2: DNE

Patches_linux-lts-backport-maverick:
upstream_linux-lts-backport-maverick: needs-triage
dapper_linux-lts-backport-maverick: DNE
hardy_linux-lts-backport-maverick: DNE
karmic_linux-lts-backport-maverick: DNE
lucid_linux-lts-backport-maverick: released (2.6.35-25.44~lucid1)
maverick_linux-lts-backport-maverick: DNE
devel_linux-lts-backport-maverick: DNE