Integer overflow in Upx

CVE-2019-20805

p_lx_elf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a PT_DYNAMIC segment.

Vulnerability class: Integer Overflow

EPSS: 0.007 (51.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Upx
N/a — versions n/a

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-20805?: CVE-2019-20805 is a medium-severity vulnerability in Upx, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2020-06-01.
How severe is CVE-2019-20805?: Medium severity. CVSS v3 base score is 5.5 out of 10.