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Vulnerability Details : CVE-2012-4565

The tcp_illinois_info function in net/ipv4/tcp_illinois.c in the Linux kernel before 3.4.19, when the net.ipv4.tcp_congestion_control illinois setting is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) by reading TCP stats.
Publish Date : 2012-12-21 Last Update Date : 2013-08-22
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- CVSS Scores & Vulnerability Types

CVSS Score
4.7
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 189

- Related OVAL Definitions

Title Definition Id Class Family
DEPRECATED: ELSA-2012-1580 -- kernel security, bug fix and enhancement update (moderate) oval:org.mitre.oval:def:27678 unix
ELSA-2012-2047 -- Unbreakable Enterprise kernel security update (moderate) oval:org.mitre.oval:def:26913 unix
ELSA-2012-2048 -- Unbreakable Enterprise kernel security update (moderate) oval:org.mitre.oval:def:27629 unix
ELSA-2012:1580: kernel security, bug fix and enhancement update (Moderate) oval:org.mitre.oval:def:23871 unix
RHSA-2012:1580: kernel security, bug fix and enhancement update (Moderate) oval:com.redhat.rhsa:def:20121580 unix
RHSA-2012:1580: kernel security, bug fix and enhancement update (Moderate) oval:org.mitre.oval:def:20699 unix
SUSE-SU-2013:0259-1 -- kernel update for SLE11 SP2 oval:org.mitre.oval:def:26226 unix
SUSE-SU-2014:0287-1 -- Security update for Linux kernel oval:org.mitre.oval:def:24665 unix
USN-1644-1 -- linux vulnerabilities oval:org.mitre.oval:def:18197 unix
USN-1653-1 -- linux-ec2 vulnerability oval:org.mitre.oval:def:18145 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2012-4565

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
2 OS Linux Linux Kernel 3.4.1 * * * Version Details Vulnerabilities
3 OS Linux Linux Kernel 3.4.2 * * * Version Details Vulnerabilities
4 OS Linux Linux Kernel 3.4.3 * * * Version Details Vulnerabilities
5 OS Linux Linux Kernel 3.4.4 * * * Version Details Vulnerabilities
6 OS Linux Linux Kernel 3.4.5 * * * Version Details Vulnerabilities
7 OS Linux Linux Kernel 3.4.6 * * * Version Details Vulnerabilities
8 OS Linux Linux Kernel 3.4.7 * * * Version Details Vulnerabilities
9 OS Linux Linux Kernel 3.4.8 * * * Version Details Vulnerabilities
10 OS Linux Linux Kernel 3.4.9 * * * Version Details Vulnerabilities
11 OS Linux Linux Kernel 3.4.10 * * * Version Details Vulnerabilities
12 OS Linux Linux Kernel 3.4.11 * * * Version Details Vulnerabilities
13 OS Linux Linux Kernel 3.4.12 * * * Version Details Vulnerabilities
14 OS Linux Linux Kernel 3.4.13 * * * Version Details Vulnerabilities
15 OS Linux Linux Kernel 3.4.14 * * * Version Details Vulnerabilities
16 OS Linux Linux Kernel 3.4.15 * * * Version Details Vulnerabilities
17 OS Linux Linux Kernel 3.4.16 * * * Version Details Vulnerabilities
18 OS Linux Linux Kernel 3.4.17 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 18

- References For CVE-2012-4565

http://rhn.redhat.com/errata/RHSA-2012-1580.html
REDHAT RHSA-2012:1580
http://www.ubuntu.com/usn/USN-1651-1
UBUNTU USN-1651-1
http://www.ubuntu.com/usn/USN-1650-1
UBUNTU USN-1650-1
http://www.ubuntu.com/usn/USN-1652-1
UBUNTU USN-1652-1
http://www.ubuntu.com/usn/USN-1645-1
UBUNTU USN-1645-1
http://www.ubuntu.com/usn/USN-1646-1
UBUNTU USN-1646-1
http://www.ubuntu.com/usn/USN-1647-1
UBUNTU USN-1647-1
http://www.ubuntu.com/usn/USN-1649-1
UBUNTU USN-1649-1
http://www.ubuntu.com/usn/USN-1644-1
UBUNTU USN-1644-1
http://www.ubuntu.com/usn/USN-1648-1
UBUNTU USN-1648-1
https://github.com/torvalds/linux/commit/8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664 CONFIRM
http://www.openwall.com/lists/oss-security/2012/10/31/5
MLIST [oss-security] 20121031 Re: CVE Request -- kernel: net: divide by zero in tcp algorithm illinois
https://bugzilla.redhat.com/show_bug.cgi?id=871848 CONFIRM
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.19 CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664 CONFIRM
http://www.securityfocus.com/bid/56346
BID 56346 Linux Kernel 'tcp_illinois_info()' Local Denial of Service Vulnerability Release Date:2014-02-27
http://secunia.com/advisories/51409
SECUNIA 51409
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html
FEDORA FEDORA-2012-17479

- Metasploit Modules Related To CVE-2012-4565

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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