CVE-2001-0851

Severity Score

9.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall rules by brute force guessing the cookie.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2001-11-22 CVE Reserved
2001-12-06 CVE Published
2024-08-08 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (9)

URL	Tag	Source
https://exchange.xforce.ibmcloud.com/vulnerabilities/7461	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://www.caldera.com/support/security/advisories/CSSA-2001-038.0.txt	2017-10-10
http://www.linuxsecurity.com/advisories/other_advisory-1683.html	2017-10-10

URL	Date	SRC
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000432	2017-10-10
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-082.php3	2017-10-10
http://www.novell.com/linux/security/advisories/2001_039_kernel2_txt.html	2017-10-10
http://www.redhat.com/support/errata/RHSA-2001-142.html	2017-10-10
https://access.redhat.com/security/cve/CVE-2001-0851	2001-11-02
https://bugzilla.redhat.com/show_bug.cgi?id=1616625	2001-11-02

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Caldera Search vendor "Caldera"		Openlinux Server Search vendor "Caldera" for product "Openlinux Server"				3.1 Search vendor "Caldera" for product "Openlinux Server" and version "3.1"		-		Affected
Caldera Search vendor "Caldera"		Openlinux Workstation Search vendor "Caldera" for product "Openlinux Workstation"				3.1 Search vendor "Caldera" for product "Openlinux Workstation" and version "3.1"		-		Affected
Caldera Search vendor "Caldera"		Openlinux Search vendor "Caldera" for product "Openlinux"				2.3 Search vendor "Caldera" for product "Openlinux" and version "2.3"		-		Affected
Caldera Search vendor "Caldera"		Openlinux Edesktop Search vendor "Caldera" for product "Openlinux Edesktop"				2.4 Search vendor "Caldera" for product "Openlinux Edesktop" and version "2.4"		-		Affected
Caldera Search vendor "Caldera"		Openlinux Eserver Search vendor "Caldera" for product "Openlinux Eserver"				2.3.1 Search vendor "Caldera" for product "Openlinux Eserver" and version "2.3.1"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.0 Search vendor "Linux" for product "Linux Kernel" and version "2.0"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.2.0 Search vendor "Linux" for product "Linux Kernel" and version "2.2.0"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.4.0 Search vendor "Linux" for product "Linux Kernel" and version "2.4.0"		-		Affected
Suse Search vendor "Suse"		Suse Linux Search vendor "Suse" for product "Suse Linux"				6.3 Search vendor "Suse" for product "Suse Linux" and version "6.3"		-		Affected
Suse Search vendor "Suse"		Suse Linux Search vendor "Suse" for product "Suse Linux"				6.4 Search vendor "Suse" for product "Suse Linux" and version "6.4"		-		Affected
Suse Search vendor "Suse"		Suse Linux Search vendor "Suse" for product "Suse Linux"				7.0 Search vendor "Suse" for product "Suse Linux" and version "7.0"		-		Affected
Suse Search vendor "Suse"		Suse Linux Search vendor "Suse" for product "Suse Linux"				7.1 Search vendor "Suse" for product "Suse Linux" and version "7.1"		-		Affected
Suse Search vendor "Suse"		Suse Linux Search vendor "Suse" for product "Suse Linux"				7.2 Search vendor "Suse" for product "Suse Linux" and version "7.2"		-		Affected
Suse Search vendor "Suse"		Suse Linux Search vendor "Suse" for product "Suse Linux"				7.3 Search vendor "Suse" for product "Suse Linux" and version "7.3"		-		Affected