CVE-2021-38185

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    CVE-2021-38185

    Published: 8 Aug 2021Last Modified: 18 Sept 2026

    Summary:

    Details: GNU cpio through 2.13 allows attackers to execute arbitrary code via a crafted pattern file, because of a dstring.c ds_fgetstr integer overflow that triggers an out-of-bounds heap write. NOTE: it is unclear whether there are common cases where the pattern file, associated with the -E option, is untrusted data.

    References: https://lists.debian.org/debian-lts-announce/2023/06/msg00007.html, https://git.savannah.gnu.org/cgit/cpio.git/commit/?id=dd96882877721703e19272fe25034560b794061b, https://github.com/fangqyi/cpiopwn, https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00000.html, https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00002.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -dd96882877721703e19272fe25034560b794061b

    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
    CVE-2021-38185 | CVE-DB