CVE-2012-4565

kernel: net: divide by zero in tcp algorithm illinois

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función tcp_illinois_info en net/ipv4/tcp_illinois.c en el kernel de Linux antes de v3.4.19, cuando la opción net.ipv4.tcp_congestion_control illinois está habilitada, permite a usuarios locales provocar una denegación de servicio (división por cero y caída) mediante la lectura de estadísticas TCP.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2012-08-21 CVE Reserved
2012-11-30 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-189: Numeric Errors

CAPEC

References (19)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664	X_refsource_confirm
http://secunia.com/advisories/51409	Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.19	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2012/10/31/5	Mailing List
http://www.securityfocus.com/bid/56346	Vdb Entry

URL	Date	SRC
https://github.com/torvalds/linux/commit/8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-1580.html	2023-02-13
http://www.ubuntu.com/usn/USN-1644-1	2023-02-13
http://www.ubuntu.com/usn/USN-1645-1	2023-02-13
http://www.ubuntu.com/usn/USN-1646-1	2023-02-13
http://www.ubuntu.com/usn/USN-1647-1	2023-02-13
http://www.ubuntu.com/usn/USN-1648-1	2023-02-13
http://www.ubuntu.com/usn/USN-1649-1	2023-02-13
http://www.ubuntu.com/usn/USN-1650-1	2023-02-13
http://www.ubuntu.com/usn/USN-1651-1	2023-02-13
http://www.ubuntu.com/usn/USN-1652-1	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=871848	2012-12-18
https://access.redhat.com/security/cve/CVE-2012-4565	2012-12-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 3.4.18 Search vendor "Linux" for product "Linux Kernel" and version " <= 3.4.18"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.1 Search vendor "Linux" for product "Linux Kernel" and version "3.4.1"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.2 Search vendor "Linux" for product "Linux Kernel" and version "3.4.2"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.3 Search vendor "Linux" for product "Linux Kernel" and version "3.4.3"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.4 Search vendor "Linux" for product "Linux Kernel" and version "3.4.4"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.5 Search vendor "Linux" for product "Linux Kernel" and version "3.4.5"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.6 Search vendor "Linux" for product "Linux Kernel" and version "3.4.6"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.7 Search vendor "Linux" for product "Linux Kernel" and version "3.4.7"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.8 Search vendor "Linux" for product "Linux Kernel" and version "3.4.8"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.9 Search vendor "Linux" for product "Linux Kernel" and version "3.4.9"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.10 Search vendor "Linux" for product "Linux Kernel" and version "3.4.10"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.11 Search vendor "Linux" for product "Linux Kernel" and version "3.4.11"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.12 Search vendor "Linux" for product "Linux Kernel" and version "3.4.12"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.13 Search vendor "Linux" for product "Linux Kernel" and version "3.4.13"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.14 Search vendor "Linux" for product "Linux Kernel" and version "3.4.14"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.15 Search vendor "Linux" for product "Linux Kernel" and version "3.4.15"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.16 Search vendor "Linux" for product "Linux Kernel" and version "3.4.16"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				3.4.17 Search vendor "Linux" for product "Linux Kernel" and version "3.4.17"		-		Affected