CVE-2018-10887

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    CVE-2018-10887

    Published: 10 Jul 2018Last Modified: 8 Jul 2026

    Summary:

    Details: A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service.

    References: https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html, https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html, https://bugzilla.redhat.com/show_bug.cgi?id=1598021, https://github.com/libgit2/libgit2/commit/3f461902dc1072acb8b7607ee65d0a0458ffac2a, https://github.com/libgit2/libgit2/commit/c1577110467b701dcbcf9439ac225ea851b47d22, https://github.com/libgit2/libgit2/releases/tag/v0.27.3

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -504bd54a2b57e8d606c63c00e5e15ea68a30bc5b

    Affected versions

    v0.27.2
    v0.27.1
    v0.27.0
    v0.27.0-rc3
    v0.27.0-rc1
    v0.27.0-rc2

    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