MGASA-2020-0464

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    MGASA-2020-0464

    Published: 20 Dec 2020Last Modified: 16 Apr 2026

    Summary: Updated openjpeg2 packages fix security vulnerabilities

    Details: A heap-buffer overwrites error was discovered in lib/openjp2/mqc.c in OpenJPEG 2.3.1. The vulnerability causes an out-of-bounds write, which may lead to remote denial of service or possibly remote code execution (CVE-2020-27814). A flaw was found in OpenJPEG’s encoder. This flaw allows an attacker to pass specially crafted x,y offset input to OpenJPEG to use during encoding. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability (CVE-2020-27823). There is a flaw in openjpeg's encoder in the opj_dwt_calc_explicit_stepsizes() function. An attacker who is able to supply crafted input to decomposition levels could cause a buffer overflow, potentially causing an impact to application availability (CVE-2020-27824).

    References: https://advisories.mageia.org/MGASA-2020-0464.html, https://bugs.mageia.org/show_bug.cgi?id=27822, https://lists.fedoraproject.org/archives/list/[email protected]/thread/IT4DFBK3FQCB3UOEAZ4XYIDFSWQRMNDX/, https://lists.fedoraproject.org/archives/list/[email protected]/thread/OQR4EWRFFZQDMFPZKFZ6I3USLMW6TKTP/

    Affected packages

    Package

    Name: openjpeg2

    Purl: pkg:rpm/mageia/openjpeg2?arch=source&distro=mageia-7

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.3.1-1.5.mga7

    Affected versions

    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
    MGASA-2020-0464 | CVE-DB