CVE-2010-1643

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-06-03 · updated 2026-06-16

Description

mm/shmem.c in the Linux kernel before 2.6.28-rc3, when strict overcommit is enabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors.

Affected products

Linux kernel: through 2.6.28; 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5 (+286)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=731572d39fcd3498702eda4600db4c43d51e0b26
http://lists.opensuse.org/opensuse-security-announce/2010-07/msg00006.html
http://secunia.com/advisories/40645
http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-knfsd-9666
http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.28/ChangeLog-2.6.28-rc3
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
http://www.openwall.com/lists/oss-security/2010/05/26/2
http://www.openwall.com/lists/oss-security/2010/05/26/6
http://www.securityfocus.com/bid/40377
http://www.vupen.com/english/advisories/2010/1857
https://bugzilla.redhat.com/show_bug.cgi?id=595970
https://exchange.xforce.ibmcloud.com/vulnerabilities/58957

Get alerted when CVE-2010-1643 or the next vulnerability affects your stack