UBUNTU-CVE-2023-48706

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    UBUNTU-CVE-2023-48706

    Published: 22 Nov 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-48706
    Aliases:
    USN-6557-1

    Summary:

    Details: Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a `:s` command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive `:s` call causes free-ing of memory which may later then be accessed by the initial `:s` command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.

    References: https://ubuntu.com/security/CVE-2023-48706, https://github.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53q, https://github.com/vim/vim/pull/13552, https://github.com/gandalf4a/crash_report/blob/main/vim/vim_huaf, http://www.openwall.com/lists/oss-security/2023/11/22/3, https://ubuntu.com/security/notices/USN-6557-1, https://www.cve.org/CVERecord?id=CVE-2023-48706

    Affected packages

    Package

    Name: vim

    Purl: pkg:deb/ubuntu/vim@2:8.2.3995-1ubuntu2.15?arch=source&distro=jammy

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:8.2.3995-1ubuntu2.15

    Affected versions

    2:8.2.2434-3ubuntu3
    2:8.2.2434-3ubuntu4
    2:8.2.3565-1ubuntu1
    2:8.2.3565-1ubuntu2
    2:8.2.3565-1ubuntu3
    2:8.2.3565-1ubuntu5
    2:8.2.3995-1ubuntu1
    2:8.2.3995-1ubuntu2
    2:8.2.3995-1ubuntu2.1
    2:8.2.3995-1ubuntu2.3
    2:8.2.3995-1ubuntu2.4
    2:8.2.3995-1ubuntu2.5
    2:8.2.3995-1ubuntu2.7
    2:8.2.3995-1ubuntu2.8
    2:8.2.3995-1ubuntu2.9
    2:8.2.3995-1ubuntu2.10
    2:8.2.3995-1ubuntu2.11
    2:8.2.3995-1ubuntu2.12
    2:8.2.3995-1ubuntu2.13

    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
    UBUNTU-CVE-2023-48706 | CVE-DB