Buffer overflow in UPX - CVE-2023-23457
Published: December 12, 2023
Vulnerability identifier: #VU84098
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-23457
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: UPX
Affected software:
UPX
UPX
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to a boundary error in UPX in PackLinuxElf64::invert_pt_dynamic() in p_lx_elf.cpp. A local user can create a specially crafted data, trick the victim into opening it, trigger memory corruption and perform a denial of service attack.
How to mitigate CVE-2023-23457
Install updates from vendor's website.
Sources
- https://bugzilla.redhat.com/show_bug.cgi?id=2160382
- https://github.com/upx/upx/commit/779b648c5f6aa9b33f4728f79dd4d0efec0bf860
- https://github.com/upx/upx/issues/631
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/