PT-2011-2859 · Linux+1 · Linux Kernel+1

Nelson Elhage · Published 2011-04-03 · Updated 2023-02-13 · CVE-2011-1082

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.38

Description The issue allows local users to cause a denial of service, resulting in either a deadlock or stack memory consumption, by making epoll create and epoll ctl system calls via a crafted application. This is due to the improper checking for closed loops or deep chains when placing epoll file descriptors within other epoll data structures.

Recommendations For Linux kernel versions prior to 2.6.38, update to version 2.6.38 or later to resolve the issue.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2011-1082

RHSA-2011:0500

RHSA-2011:0542

RHSA-2011:0883

RHSA-2011_0542

RHSA-2011_0883

Affected Products

Linux Kernel

Red Hat

References · 34

• 🔥 https://exploit-db.com/exploits/35404 · Exploit
• http://openwall.com/lists/oss-security/2011/03/02/1 · Patch
• https://bdu.fstec.ru/vul/2015-04607 · Security Note
• https://lkml.org/lkml/2011/2/5/220 · Patch
• https://linux.oracle.com/errata/ELSA-2011-0542.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-04341 · Security Note
• https://linux.oracle.com/errata/ELSA-2011-2016.html · Vendor Advisory
• http://openwall.com/lists/oss-security/2011/03/02/2 · Patch
• https://bdu.fstec.ru/vul/2015-04343 · Security Note
• https://bugzilla.redhat.com/show_bug.cgi?id=681575 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2011-1082 · Security Note
• https://bdu.fstec.ru/vul/2015-04342 · Security Note
• https://github.com/torvalds/linux/commit/da48524eb20662618854bb3df2db01fc65f3070c · Note
• https://github.com/torvalds/linux/commit/6094628bfd94323fc1cea05ec2c6affd98c18f7f · Note
• https://access.redhat.com/security/cve/CVE-2011-1494 · Note