A vulnerability was found in ckolivas lrzip up to 0.651. This impacts the function lzma_decompress_buf of the file stream.c. Performing a manipulation results in use after free. Attacking locally is a requirement. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21179-1 advisory.

    Changes in lrzip:

    - Update to version 0.660:
      * Do not clean up thread structures in decompression failure         conditions, fixing a use-after-free in lzma_decompress_buf() and a         NULL pointer dereference in ucompthread() on corrupt/malicious         archives (CVE-2025-15570, boo#1258016; CVE-2025-15571, boo#1258023)
      * Handle -L given without a parameter, fixing a NULL pointer         dereference (CVE-2025-9396, boo#1248598)
      * Add write bounds checking in libzpaq and sanity checks for         maliciously encoded headers and oversized allocations
      * Various STDIO, portability and build fixes (OpenBSD support,         non-x86 zpaq, autoconf warnings); drop Doxygen doc build

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4567 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4567-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                           Chris Lamb     May 06, 2026                                  https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : lrzip     Version        : 0.641-1+deb11u2     CVE ID         : CVE-2025-15570     Debian Bug     : 1128069

    It was discovered that there was a potential use-after-free issue in     the lrzip compression/decompression program.

    For Debian 11 bullseye, this problem has been fixed in version     0.641-1+deb11u2.

    We recommend that you upgrade your lrzip packages.

    For the detailed security status of lrzip please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/lrzip

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A vulnerability was found in ckolivas lrzip up to 0.651. This impacts the function lzma_decompress_buf of     the file stream.c. Performing a manipulation results in use after free. Attacking locally is a     requirement. The exploit has been made public and could be used. The project was informed of the problem     early through an issue report but has not responded yet. (CVE-2025-15570)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
324884	openSUSE 16 Security Update : lrzip (openSUSE-SU-2026:21179-1)	Nessus	SuSE Local Security Checks	medium
313010	Debian dla-4567 : lrzip - security update	Nessus	Debian Local Security Checks	medium
298653	Linux Distros Unpatched Vulnerability : CVE-2025-15570	Nessus	Misc.	medium

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