Input validation error in Linux kernel - CVE-2012-4398
Published: February 18, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU43084
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-4398
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The __request_module function in kernel/kmod.c in the Linux kernel before 3.4 does not set a certain killable attribute, which allows local users to cause a denial of service (memory consumption) via a crafted application.
How to mitigate CVE-2012-4398
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
- http://lkml.indiana.edu/hypermail/linux/kernel/1202.0/03340.html
- http://rhn.redhat.com/errata/RHSA-2013-0223.html
- http://rhn.redhat.com/errata/RHSA-2013-1348.html
- http://secunia.com/advisories/55077
- http://www.kernel.org/pub/linux/kernel/v3.x/linux-3.4.tar.bz2
- http://www.openwall.com/lists/oss-security/2012/09/02/3
- http://www.securityfocus.com/bid/55361
- https://bugzilla.redhat.com/show_bug.cgi?id=853474