Integer overflow in UPX UPX



Published: 2020-06-01 | Updated: 2020-07-17
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-20805
CWE-ID CWE-190
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe
UPX
Universal components / Libraries / Libraries used by multiple products

Vendor UPX

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU30279

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-20805

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

UPX: 3.00 - 3.95

External links

http://github.com/upx/upx/commit/8be9da8280dfa69d5df4417d4d81bda1cab78010
http://github.com/upx/upx/issues/317


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###