Buffer overflow in Linux kernel - CVE-2011-2534
Published: June 23, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU44927
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-2011-2534
CWE-ID: CWE-120
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 authenticated user to execute arbitrary code.
Buffer overflow in the clusterip_proc_write function in net/ipv4/netfilter/ipt_CLUSTERIP.c in the Linux kernel before 2.6.39 might allow local users to cause a denial of service or have unspecified other impact via a crafted write operation, related to string data that lacks a terminating ' ' character.
How to mitigate CVE-2011-2534
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=961ed183a9fd080cf306c659b8736007e44065a5
- http://marc.info/?l=netfilter&m=129978077509888&w=2
- http://marc.info/?l=netfilter-devel&m=130036157327564&w=2
- http://securityreason.com/securityalert/8284
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
- http://www.openwall.com/lists/oss-security/2011/03/18/15
- http://www.openwall.com/lists/oss-security/2011/03/21/1
- http://www.openwall.com/lists/oss-security/2011/03/21/4
- http://www.securityfocus.com/bid/46921
- https://bugzilla.redhat.com/show_bug.cgi?id=689337