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    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.

    Published:Nov 2, 2001
    Last Modified:Apr 16, 2026
    EPS:Mar 9, 2002
    EPSS Score:0.00623
    CVSS Score:5

    Affected Products

    Vendor
    Caldera
    Product
    Openlinux
    Vendor
    Caldera
    Product
    Openlinux Edesktop
    Vendor
    Caldera
    Product
    Openlinux Eserver
    Vendor
    Caldera
    Product
    Openlinux Server
    Vendor
    Caldera
    Product
    Openlinux Workstation
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Linux
    Vendor
    Suse
    Product
    Suse Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2002-1199 (CVSS 5) — The getdbm procedure in ypxfrd allows local users to read arbitrary files, and remote attackers to read databa…
    CVE-2001-0850 (CVSS 10) — A configuration error in the libdb1 package in OpenLinux 3.1 uses insecure versions of the snprintf and vsnpri…
    CVE-2000-0892 (CVSS 2.6) — Some telnet clients allow remote telnet servers to request environment variables from the client that may cont…
    CVE-2000-1134 (CVSS 7.2) — Multiple shell programs on various Unix systems, including (1) tcsh, (2) csh, (3) sh, and (4) bash, follow sym…
    CVE-2000-0917 (CVSS 10) — Format string vulnerability in use_syslog() function in LPRng 3.6.24 allows remote attackers to execute arbitr…
    CVE-2000-0844 (CVSS 10) — Some functions that implement the locale subsystem on Unix do not properly cleanse user-injected format strin…
    CVE-2000-0372 (CVSS 7.2) — Vulnerability in Caldera rmt command in the dump package 0.4b4 allows a local user to gain root privileges.…
    CVE-2000-0566 (CVSS 7.2) — makewhatis in Linux man package allows local users to overwrite files via a symlink attack.…
    CVE-2000-0530 (CVSS 7.2) — The KApplication class in the KDE 1.1.2 configuration file management capability allows local users to overwri…
    CVE-2000-0438 (CVSS 7.2) — Buffer overflow in fdmount on Linux systems allows local users in the "floppy" group to execute arbitrary comm…

    References

    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High