Integer overflow in Linux kernel - CVE-2011-1593
Published: May 3, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU45089
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-2011-1593
CWE-ID: CWE-190
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.
Multiple integer overflows in the next_pidmap function in kernel/pid.c in the Linux kernel before 2.6.38.4 allow local users to cause a denial of service (system crash) via a crafted (1) getdents or (2) readdir system call.
How to mitigate CVE-2011-1593
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c78193e9c7bcbf25b8237ad0dec82f805c4ea69b
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d8bdc59f215e62098bc5b4256fd9928bf27053a1
- http://groups.google.com/group/fa.linux.kernel/msg/4a28ecb7f755a88d?dmode=source
- http://openwall.com/lists/oss-security/2011/04/19/1
- http://openwall.com/lists/oss-security/2011/04/20/1
- http://rhn.redhat.com/errata/RHSA-2011-0927.html
- http://secunia.com/advisories/44164
- http://securitytracker.com/id?1025420
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.4
- http://www.securityfocus.com/bid/47497
- http://www.ubuntu.com/usn/USN-1146-1
- https://bugzilla.redhat.com/show_bug.cgi?id=697822
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66876