Buffer overflow in Upx
CVE-2023-23457
A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (27.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
Affected products
- Upx
- Fedoraproject Fedora — versions 36, 37
Weakness classification (CWE)
References
- patrick@puiterwijk.org (Patch, Third Party Advisory, Issue Tracking)
- patrick@puiterwijk.org (Patch, Third Party Advisory)
- patrick@puiterwijk.org (Exploit, Patch, Third Party Advisory)
- patrick@puiterwijk.org (vendor-advisory)
- patrick@puiterwijk.org (vendor-advisory)
Frequently asked questions
- What is CVE-2023-23457?
- CVE-2023-23457 is a medium-severity vulnerability in Upx, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2023-01-12.
- How severe is CVE-2023-23457?
- Medium severity. CVSS v3 base score is 5.3 out of 10.