NULL pointer dereference in Linux kernel - CVE-2010-1643
Published: June 3, 2010 / Updated: February 13, 2023
Vulnerability identifier: #VU93714
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2010-1643
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
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.
How to mitigate CVE-2010-1643
Install update from vendor's website.
Sources
- http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-knfsd-9666
- https://bugzilla.redhat.com/show_bug.cgi?id=595970
- http://www.openwall.com/lists/oss-security/2010/05/26/2
- http://www.openwall.com/lists/oss-security/2010/05/26/6
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.28/ChangeLog-2.6.28-rc3
- http://www.securityfocus.com/bid/40377
- http://www.vupen.com/english/advisories/2010/1857
- http://secunia.com/advisories/40645
- http://lists.opensuse.org/opensuse-security-announce/2010-07/msg00006.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
- https://exchange.xforce.ibmcloud.com/vulnerabilities/58957
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=731572d39fcd3498702eda4600db4c43d51e0b26