PT-2016-3466 · Linux+2 · Linux Kernel+2

Published 2015-07-14 · Updated 2018-01-05 · CVE-2011-5321

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.1.1

Description The issue is related to the tty open function in the Linux kernel, which mishandles a driver-lookup failure. This can be exploited by local users to cause a denial of service, resulting in a NULL pointer dereference and system crash, via crafted access to a device file under the /dev/pts directory.

Recommendations For Linux kernel versions prior to 3.1.1, update to version 3.1.1 or later to resolve the issue.

Exploit

Fix

Related Identifiers

CESA-2015_1221

CVE-2011-5321

DLA-246-1

RHSA-2015:1221

RHSA-2015_1221

Affected Products

Centos

Linux Kernel

Red Hat

References · 19

• 🔥 https://github.com/fi01/CVE-2015-3636 · Exploit
• 🔥 https://github.com/android-rooting-tools/libpingpong_exploit · Exploit
• 🔥 https://github.com/a7vinx/CVE-2015-3636 · Exploit
• 🔥 https://github.com/askk/libping_unhash_exploit_POC · Exploit
• 🔥 https://github.com/betalphafai/cve-2015-3636_crash · Exploit
• https://github.com/torvalds/linux/commit/c290f8358acaeffd8e0c551ddcc24d1206143376 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-5321 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-5321 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2011-5321 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2011-5321 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-5321 · Security Note
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c290f8358acaeffd8e0c551ddcc24d1206143376 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2015-1221.html · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2015-1221.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2011-5321 · Vendor Advisory