CVE-2019-20021

A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

CVSS v3.1

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

1.08% chance of exploitation in the next 30 days, 63th percentile

Published

2019-12-27

Updated

2024-08-05

Proof-of-concept exploits (1)

• upx/upx/issues/315

References

• CVE Record
• NVD entry

Related

• CVE-2018-11243
• CVE-2019-14295
• CVE-2019-14296
• CVE-2019-20051
• CVE-2019-20053
• CVE-2020-24119