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    CVE-2020-18770

    An issue was discovered in function zzip_disk_entry_to_file_header in mmapped.c in zziplib 0.13.69, which will lead to a denial-of-service.

    Published:Aug 22, 2023
    Last Modified:Jul 10, 2025
    EPS:Aug 22, 2023
    EPSS Score:0.00021
    CVSS Score:5.5

    Affected Products

    Vendor
    Gdraheim
    Product
    Zziplib
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://github.com/gdraheim/zziplib/issues/69https://github.com/gdraheim/zziplib/issues/69

    Related CVEs

    CVE-2024-39134 (CVSS 7.5) — A Stack Buffer Overflow vulnerability in zziplibv 0.13.77 allows attackers to cause a denial of service via th…
    CVE-2020-18442 (CVSS 3.3) — Infinite Loop in zziplib v0.13.69 allows remote attackers to cause a denial of service via the return value "z…
    CVE-2018-17828 (CVSS 5.5) — Directory traversal vulnerability in ZZIPlib 0.13.69 allows attackers to overwrite arbitrary files via a .. (d…
    CVE-2018-16548 (CVSS 6.5) — An issue was discovered in ZZIPlib through 0.13.69. There is a memory leak triggered in the function __zzip_pa…
    CVE-2018-7726 (CVSS 6.5) — An issue was discovered in ZZIPlib 0.13.68. There is a bus error caused by the __zzip_parse_root_directory fun…
    CVE-2018-7727 (CVSS 6.5) — An issue was discovered in ZZIPlib 0.13.68. There is a memory leak triggered in the function zzip_mem_disk_new…
    CVE-2018-6869 (CVSS 6.5) — In ZZIPlib 0.13.68, there is an uncontrolled memory allocation and a crash in the __zzip_parse_root_directory …
    CVE-2018-7725 (CVSS 6.5) — An issue was discovered in ZZIPlib 0.13.68. An invalid memory address dereference was discovered in zzip_disk_…
    CVE-2018-6542 (CVSS 6.5) — In ZZIPlib 0.13.67, there is a bus error (when handling a disk64_trailer seek value) caused by loading of a mi…
    CVE-2018-6540 (CVSS 6.5) — In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address in the zzip_disk_findfirst …

    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