Linux Security
    Linux Security
    Linux Security

    ArchLinux: 202012-24: openssl: denial of service

    Date 31 Dec 2020
    656
    Posted By LinuxSecurity Advisories
    The package openssl before version 1.1.1.i-1 is vulnerable to denial of service.
    Arch Linux Security Advisory ASA-202012-24
    ==========================================
    
    Severity: High
    Date    : 2020-12-16
    CVE-ID  : CVE-2020-1971
    Package : openssl
    Type    : denial of service
    Remote  : Yes
    Link    : https://security.archlinux.org/AVG-1335
    
    Summary
    =======
    
    The package openssl before version 1.1.1.i-1 is vulnerable to denial of
    service.
    
    Resolution
    ==========
    
    Upgrade to 1.1.1.i-1.
    
    # pacman -Syu "openssl>=1.1.1.i-1"
    
    The problem has been fixed upstream in version 1.1.1.i.
    
    Workaround
    ==========
    
    None.
    
    Description
    ===========
    
    A denial of service security issue was discovered in OpenSSL before
    1.1.1i. The X.509 GeneralName type is a generic type for representing
    different types of names. One of those name types is known as
    EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which
    compares different instances of a GENERAL_NAME to see if they are equal
    or not. This function behaves incorrectly when both GENERAL_NAMEs
    contain an EDIPARTYNAME. A NULL pointer dereference and a crash may
    occur leading to a possible denial of service attack.
    
    Impact
    ======
    
    A remote attacker might be able to cause a crash by tricking a
    vulnerable client or server into checking a malicious certificate
    against a malicious CRL.
    
    References
    ==========
    
    https://www.openssl.org/news/secadv/20201208.txt
    https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=f960d81215ebf3f65e03d4d5d857fb9b666d6920
    https://security.archlinux.org/CVE-2020-1971
    

    LinuxSecurity Poll

    'Tis the season of giving! How have you given back to the open-source community?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/49-tis-the-season-of-giving-how-have-you-given-back-to-the-open-source-community?task=poll.vote&format=json
    49
    radio
    [{"id":"171","title":"I've contributed to the development of an open-source project.","votes":"22","type":"x","order":"1","pct":34.92,"resources":[]},{"id":"172","title":"I've reviewed open-source code for security bugs.","votes":"13","type":"x","order":"2","pct":20.63,"resources":[]},{"id":"173","title":"I've made a donation to an open-source project.","votes":"28","type":"x","order":"3","pct":44.44,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350

    Please vote first in order to view vote results.


    VIEW MORE POLLS

    bottom 200

    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.