Vulnerability Report

CVE-2001-0851

Title: Linux kernel syncookies bypass via cookie guessing

Authentication bypass

Proof Of Concept

No public PoC currently indexed for CVE-2001-0851.

CWE Category NVD-CWE-noinfo

Published Date Dec 06, 2001

Modified Date Apr 03, 2025

Exploit Status Not Found

Score 5.0 CVSS v2.0

Exploit Probability (EPSS)

0.62%

Vulnerability Summary

CVE-2001-0851: 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.

Impacted Vendors

caldera 2

Reference Links

http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000432 http://www.caldera.com/support/security/advisories/CSSA-2001-038.0.txt http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-082.php3 http://www.linuxsecurity.com/advisories/other_advisory-1683.html http://www.novell.com/linux/security/advisories/2001_039_kernel2_txt.html http://www.redhat.com/support/errata/RHSA-2001-142.html https://exchange.xforce.ibmcloud.com/vulnerabilities/7461 http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000432 http://www.caldera.com/support/security/advisories/CSSA-2001-038.0.txt http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-082.php3 http://www.linuxsecurity.com/advisories/other_advisory-1683.html http://www.novell.com/linux/security/advisories/2001_039_kernel2_txt.html http://www.redhat.com/support/errata/RHSA-2001-142.html https://exchange.xforce.ibmcloud.com/vulnerabilities/7461

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2001-0851 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

April 03, 2025 MODIFIED

Vulnerability data or affected products updated.

December 06, 2001 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.