A vulnerability, which was classified as problematic, was found in UPX up to 5.0.0. Affected is the function PackLinuxElf64::un_DT_INIT of the file src/p_lx_elf.cpp. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The patch is identified as e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2. It is recommended to apply a patch to fix this issue.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0591 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2025-2849:
    A vulnerability, which was classified as problematic, was found in UPX up to 5.0.0. Affected is the     function PackLinuxElf64::un_DT_INIT of the file src/p_lx_elf.cpp. The manipulation leads to heap-based     buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to     the public and may be used. The patch is identified as e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2. It is     recommended to apply a patch to fix this issue.

    CVE-2024-3209:
    A vulnerability was found in UPX up to 4.2.2. It has been rated as critical. This issue affects the     function get_ne64 of the file bele.h. The manipulation leads to heap-based buffer overflow. The exploit     has been disclosed to the public and may be used. The associated identifier of this vulnerability is     VDB-259055. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenable has extracted the preceding description block directly from the Tencent Linux 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A vulnerability, which was classified as problematic, was found in UPX up to 5.0.0. Affected is the     function PackLinuxElf64::un_DT_INIT of the file src/p_lx_elf.cpp. The manipulation leads to heap-based     buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to     the public and may be used. The patch is identified as e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2. It is     recommended to apply a patch to fix this issue. (CVE-2025-2849)

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

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-f050ec7d1b advisory.

    5.0.0

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-c91006eca6 advisory.

    5.0.0

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-3f77ed652b advisory.

    5.0.0

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

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

ID	Name	Product	Family	Severity
275970	TencentOS Server 4: upx (TSSA-2025:0591)	Nessus	Tencent Local Security Checks	medium
256818	Linux Distros Unpatched Vulnerability : CVE-2025-2849	Nessus	Misc.	medium
237918	Fedora 42 : upx (2025-f050ec7d1b)	Nessus	Fedora Local Security Checks	medium
233941	Fedora 41 : upx (2025-c91006eca6)	Nessus	Fedora Local Security Checks	medium
233939	Fedora 40 : upx (2025-3f77ed652b)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2025-2849

medium

Tenable Plugins

medium

medium

medium

medium

medium