Integer overflow in UPX



| Updated: 2022-11-17
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14295
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
 UPX
Universal components / Libraries / Libraries used by multiple products

Vendor UPX

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

This bulletin was created to describe a not fixed vulnerability, previously reported in SB2018051818.
Updated list of vulnerable UPX versions.

1) Integer overflow

EUVDB-ID: #VU23827

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-14295

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows an attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in getElfSections() function in p_vmlinx.cpp via a skewed offset larger than the size of the PE section in a UPX packed executable. An attacker can create a specially crafted file, trigger integer overflow and trigger an allocation of excessive memory.

Mitigation

Install update from vendor's website.

Vulnerable software versions

UPX: 3.95 - 3.96

CPE2.3 External links

https://github.com/upx/upx/issues/286
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MOCJ43HTM45GZCAQ2FLEBDNBM76V22RG/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T52JATXV6NTPTMGXCRGT37H6KXERYNZN/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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