PT-2012-5481 · Linux+3 · Linux Kernel+3

Rodrigo Freire · Published 2012-10-31 · Updated 2023-02-13 · CVE-2012-4565

Positive Technologies (AI Summary)

CVSS v2.0

4.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.4.19

Description The issue allows local users to cause a denial of service, resulting in a divide-by-zero error and OOPS, by reading TCP stats when the net.ipv4.tcp congestion control illinois setting is enabled.

Recommendations For Linux kernel versions prior to 3.4.19, update to version 3.4.19 or later to resolve the issue. As a temporary workaround, consider disabling the net.ipv4.tcp congestion control illinois setting to minimize the risk of exploitation.

Exploit

Fix

DoS

Weakness Enumeration

CWE-189

Related Identifiers

CESA-2012_1580

CVE-2012-4565

RHSA-2012:1491

RHSA-2012:1580

RHSA-2012_1580

SUSE-SU-2015:0481-1

SUSE-SU-2015:0652-1

USN-1644-1

USN-1645-1

USN-1646-1

USN-1647-1

USN-1648-1

USN-1649-1

USN-1650-1

USN-1651-1

USN-1652-1

USN-1653-1

USN-1704-1

Affected Products

Centos

Linux Kernel

Red Hat

Suse

References · 42

• 🔥 https://github.com/torvalds/linux/commit/8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664 · Exploit
• 🔥 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664 · Exploit
• https://cve.org/CVERecord?id=CVE-2012-4565 · Security Note
• https://ubuntu.com/security/notices/USN-1704-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1645-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2012-4565 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1647-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1652-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-1650-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2012-1580.html · Vendor Advisory
• http://ubuntu.com/usn/USN-1644-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-1649-1 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2012-4565 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2012-4565 · Vendor Advisory