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CVE-2025-2849

Date: March 27, 2025

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.

Severity Score

Related Resources (10)

https://github.com/user-attachments/files/19307868/input.zip
https://nvd.nist.gov/vuln/detail/CVE-2025-2849
https://security-tracker.debian.org/tracker/CVE-2025-2849
https://github.com/upx/upx/issues/898
https://vuldb.com/?ctiid.301494
https://vuldb.com/?submit.522371
https://github.com/upx/upx/commit/e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2
https://vuldb.com/?id.301494
https://github.com/upx/upx/issues/898#issuecomment-2734082143
https://www.mend.io/vulnerability-database/CVE-2025-2849

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Out-of-bounds Write

CWE-787

Heap-based Buffer Overflow

CWE-122

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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