CVE-2021-33477

    Dashboard / Vulnerabilities / CVE-2021-33477

    CVE-2021-33477

    Published: 20 May 2021Last Modified: 8 Jul 2026

    Summary:

    Details: rxvt-unicode 9.22, rxvt 2.7.10, mrxvt 0.5.4, and Eterm 0.9.7 allow (potentially remote) code execution because of improper handling of certain escape sequences (ESC G Q). A response is terminated by a newline.

    References: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6RFMU5YXXNYYVA7G2DAHRXXHO6JKVFUT/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AO52OLNOOKOCZSJCN3R7Q25XA32BWNWP/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DUV4LDVZVW7KCGPAMFZD4ZJ4FVLPOX4C/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZWGE2RJONBEHSPCBUAW72NTRTIFKZAX/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SLPVEPBH37EBR4R54RMC6GD33J37HJXD/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXAKO6N6NKTR6Z6KVAPEXSZQMRU52SGA/, http://cvs.schmorp.de/rxvt-unicode/Changes?view=log, https://git.enlightenment.org/apps/eterm.git/log/, https://lists.debian.org/debian-lts-announce/2021/05/msg00026.html, https://lists.debian.org/debian-lts-announce/2021/06/msg00010.html, https://lists.debian.org/debian-lts-announce/2021/06/msg00011.html, https://lists.debian.org/debian-lts-announce/2021/06/msg00012.html, https://security.gentoo.org/glsa/202105-17, https://security.gentoo.org/glsa/202209-07, https://sourceforge.net/projects/materm/files/mrxvt%20source/, https://sourceforge.net/projects/rxvt/files/rxvt-dev/, https://www.openwall.com/lists/oss-security/2017/05/01/20, http://cvs.schmorp.de/rxvt-unicode/src/command.C?r1=1.582&r2=1.583, https://packetstormsecurity.com/files/162621/rxvt-2.7.0-rxvt-unicode-9.22-Code-Execution.html, https://www.openwall.com/lists/oss-security/2021/05/17/1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- df03d2705271fdb3eeccad9e191bba45cb872b96
    Fixed -None

    Affected versions

    9.22

    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
    CVE-2021-33477 | CVE-DB