CVE-2024-3209: UPX bele.h get_ne64 heap-based overflow

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-04-02 · updated 2026-06-17
Weakness: CWE-122

Description

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.

Affected products

Fedoraproject Fedora: 38, 39, 40
upx: through 4.2.2

References

https://drive.google.com/drive/folders/1qlUXvycOzGJygfkdQB9dGO6VwNRRZoih?usp=sharing
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AE5OZ7YUEVLXVVS6PFP5RELVICQ4K6QK/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J4DNK3AFPT4KIPTBKGCJ6FC3L7AWI2TN/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZHWZN2NX5W3WYA6ACJ746PAZXXNZETKD/
https://vuldb.com/?ctiid.259055
https://vuldb.com/?id.259055
https://vuldb.com/?submit.304575
https://drive.google.com/drive/folders/1qlUXvycOzGJygfkdQB9dGO6VwNRRZoih?usp=sharing
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AE5OZ7YUEVLXVVS6PFP5RELVICQ4K6QK/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J4DNK3AFPT4KIPTBKGCJ6FC3L7AWI2TN/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZHWZN2NX5W3WYA6ACJ746PAZXXNZETKD/
https://vuldb.com/?ctiid.259055

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