CVE-2011-1573

kernel: sctp: fix to calc the INIT/INIT-ACK chunk length correctly to set

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

net/sctp/sm_make_chunk.c in the Linux kernel before 2.6.34, when addip_enable and auth_enable are used, does not consider the amount of zero padding during calculation of chunk lengths for (1) INIT and (2) INIT ACK chunks, which allows remote attackers to cause a denial of service (OOPS) via crafted packet data.

net/sctp/sm_make_chunk.c del kernel de Linux en versiones anteriores a 2.6.34, si se utiliza addip_enable y auth_enable, no considera la cantidad de "padding" durante el cálculo de la longitud para los segmentos ("chunks")(1) INIT y (2) INIT ACK, lo que permite a atacantes remotos provocar una denegación de servicio (OOPS) a través de paquetes modificados.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-04-05 CVE Reserved
2011-07-15 CVE Published
2024-02-21 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-682: Incorrect Calculation

CAPEC

References (7)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a8170c35e738d62e9919ce5b109cf4ed66e95bde	X_refsource_confirm
http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.34	Broken Link

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=695383	2024-08-06

URL	Date	SRC
http://openwall.com/lists/oss-security/2011/04/11/12	2023-02-13
http://openwall.com/lists/oss-security/2011/04/11/4	2023-02-13

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2011-0927.html	2023-02-13
https://access.redhat.com/security/cve/CVE-2011-1573	2011-07-15

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"				< 2.6.34 Search vendor "Linux" for product "Linux Kernel" and version " < 2.6.34"		-		Affected