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    CVE-2018-15501

    In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\0' byte to trigger an out-of-bounds read that leads to DoS.

    Published:Aug 7, 2018
    Last Modified:Nov 21, 2024
    EPS:Aug 18, 2018
    EPSS Score:0.00304
    CVSS Score:7.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Libgit2
    Product
    Libgit2

    Exploits

    https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

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    References

    https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406
    https://bugzilla.suse.com/show_bug.cgi?id=1104641
    https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649
    https://github.com/libgit2/libgit2/releases/tag/v0.26.6
    https://github.com/libgit2/libgit2/releases/tag/v0.27.4
    https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html
    https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html
    https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html
    https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406
    https://bugzilla.suse.com/show_bug.cgi?id=1104641
    https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649
    https://github.com/libgit2/libgit2/releases/tag/v0.26.6
    https://github.com/libgit2/libgit2/releases/tag/v0.27.4
    https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html
    https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html
    https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html

    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