CVE-2023-23456

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted 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 v3.1

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

EPSS

0.39% chance of exploitation in the next 30 days, 32th percentile

Published

2023-01-12

Updated

2024-12-11

Proof-of-concept exploits (1)

• upx/upx/issues/632

References

• CVE Record
• NVD entry

Related

• CVE-2018-11243
• CVE-2019-14295
• CVE-2019-14296
• CVE-2019-20021
• CVE-2019-20051
• CVE-2019-20053