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    CVE-2023-39741

    lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.

    Published:Aug 17, 2023
    Last Modified:Nov 21, 2024
    EPS:Aug 17, 2023
    EPSS Score:0.0003
    CVSS Score:5.5

    Affected Products

    Vendor
    Long Range Zip Project
    Product
    Long Range Zip

    Exploits

    https://github.com/ckolivas/lrzip/issues/246https://github.com/huanglei3/lrzip_poc/tree/main/lrzip_heap_overflowhttps://github.com/ckolivas/lrzip/issues/246https://github.com/huanglei3/lrzip_poc/tree/main/lrzip_heap_overflow

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-9396 (CVSS 1.9) — A security flaw has been discovered in ckolivas lrzip up to 0.651. This impacts the function __GI_____strtol_l…
    CVE-2021-33453 (CVSS 7.8) — An issue was discovered in lrzip version 0.641. There is a use-after-free in ucompthread() in stream.c:1538.…
    CVE-2021-33451 (CVSS 5.5) — An issue was discovered in lrzip version 0.641. There are memory leaks in fill_buffer() in stream.c.…
    CVE-2022-33067 (CVSS 5.5) — Lrzip v0.651 was discovered to contain multiple invalid arithmetic shifts via the functions get_magic in lrzip…
    CVE-2022-26291 (CVSS 5.5) — lrzip v0.641 was discovered to contain a multiple concurrency use-after-free between the functions zpaq_decomp…
    CVE-2021-27345 (CVSS 5.5) — A null pointer dereference was discovered in ucompthread in stream.c in Irzip 0.631 which allows attackers to …
    CVE-2020-25467 (CVSS 5.5) — A null pointer dereference was discovered lzo_decompress_buf in stream.c in Irzip 0.621 which allows an attack…
    CVE-2021-27347 (CVSS 5.5) — Use after free in lzma_decompress_buf function in stream.c in Irzip 0.631 allows attackers to cause Denial of …
    CVE-2019-10654 (CVSS 5.5) — The lzo1x_decompress function in liblzo2.so.2 in LZO 2.10, as used in Long Range Zip (aka lrzip) 0.631, allows…
    CVE-2018-11496 (CVSS 6.5) — In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_…

    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