Input validation error in Linux kernel - CVE-2011-1493
Published: June 22, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43955
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-1493
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 read and manipulate data.
Array index error in the rose_parse_national function in net/rose/rose_subr.c in the Linux kernel before 2.6.39 allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact by composing FAC_NATIONAL_DIGIS data that specifies a large number of digipeaters, and then sending this data to a ROSE socket.
How to mitigate CVE-2011-1493
Install update from vendor's website.
Sources
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=be20250c13f88375345ad99950190685eda51eb8
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://www.openwall.com/lists/oss-security/2011/04/05/19
- https://bugzilla.redhat.com/show_bug.cgi?id=770777
- https://github.com/torvalds/linux/commit/be20250c13f88375345ad99950190685eda51eb8