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    Mageia 2020-0478: openjpeg2 security update

    Date 29 Dec 2020
    610
    Posted By LinuxSecurity Advisories
    There's a flaw in openjpeg in src/lib/openjp2/pi.c. When an attacker is able to provide crafted input to be processed by the openjpeg encoder, this could cause an out-of-bounds read. The greatest impact from this flaw is to application availability (CVE-2020-27841).
    MGASA-2020-0478 - Updated openjpeg2 packages fix security vulnerabilities
    
    Publication date: 29 Dec 2020
    URL: https://advisories.mageia.org/MGASA-2020-0478.html
    Type: security
    Affected Mageia releases: 7
    CVE: CVE-2020-27841,
         CVE-2020-27842,
         CVE-2020-27843,
         CVE-2020-27845
    
    There's a flaw in openjpeg in src/lib/openjp2/pi.c. When an attacker is able to
    provide crafted input to be processed by the openjpeg encoder, this could cause
    an out-of-bounds read. The greatest impact from this flaw is to application
    availability (CVE-2020-27841).
    
    There's a flaw in openjpeg's t2 encoder. An attacker who is able to provide
    crafted input to be processed by openjpeg could cause a null pointer
    dereference. The highest impact of this flaw is to application availability
    (CVE-2020-27842).
    
    A flaw was found in OpenJPEG. This flaw allows an attacker to provide specially
    crafted input to the conversion or encoding functionality, causing an
    out-of-bounds read. The highest threat from this vulnerability is system
    availability (CVE-2020-27843).
    
    There's a flaw in  src/lib/openjp2/pi.c of openjpeg. If an attacker is able to
    provide untrusted input to openjpeg's conversion/encoding functionality, they
    could cause an out-of-bounds read. The highest impact of this flaw is to
    application availability (CVE-2020-27845).
    
    References:
    - https://bugs.mageia.org/show_bug.cgi?id=27903
    - https://lists.fedoraproject.org/archives/list/This email address is being protected from spambots. You need JavaScript enabled to view it./thread/THY4LKGUS3D4XE5YHKLMTPVLURQ7OV57/
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27841
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27842
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27843
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27845
    
    SRPMS:
    - 7/core/openjpeg2-2.3.1-1.6.mga7
    

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