CVE-2010-2521

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 9.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-09-07 · updated 2026-06-16
Weakness: CWE-119

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.

Affected products

Linux kernel: through 2.6.34; 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5 (+142)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2bc3c1179c781b359d4f2f3439cb3df72afc17fc
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
http://secunia.com/advisories/43315
http://securitytracker.com/id?1024286
http://www.debian.org/security/2010/dsa-2094
http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.34/ChangeLog-2.6.34-rc6
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
http://www.openwall.com/lists/oss-security/2010/07/07/1
http://www.openwall.com/lists/oss-security/2010/07/09/2
http://www.redhat.com/support/errata/RHSA-2010-0610.html
http://www.redhat.com/support/errata/RHSA-2010-0893.html

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