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    CVE-2018-6952

    A double free exists in the another_hunk function in pch.c in GNU patch through 2.7.6.

    Published:Feb 3, 2018
    Last Modified:Nov 21, 2024
    EPS:Feb 13, 2018
    EPSS Score:0.11051
    CVSS Score:7.5

    Affected Products

    Vendor
    Gnu
    Product
    Patch
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-56288 (CVSS 4.6) — GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch f…
    CVE-2021-45261 (CVSS 5.5) — An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial …
    CVE-2018-20969 (CVSS 7.8) — do_ed_script in pch.c in GNU patch through 2.7.6 does not block strings beginning with a ! character. NOTE: th…
    CVE-2019-20633 (CVSS 5.5) — GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk …
    CVE-2019-13638 (CVSS 7.8) — GNU patch through 2.7.6 is vulnerable to OS shell command injection that can be exploited by opening a crafted…
    CVE-2019-13636 (CVSS 5.9) — In GNU patch through 2.7.6, the following of symlinks is mishandled in certain cases other than input files. T…
    CVE-2018-1000156 (CVSS 7.8) — GNU Patch version 2.7.6 contains an input validation vulnerability when processing patch files, specifically t…
    CVE-2016-10713 (CVSS 5.5) — An issue was discovered in GNU patch before 2.7.6. Out-of-bounds access within pch_write_line() in pch.c can p…
    CVE-2018-6951 (CVSS 7.5) — An issue was discovered in GNU patch through 2.7.6. There is a segmentation fault, associated with a NULL poin…

    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