Gentoo update for LZ4



Published: 2024-06-26
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-3520
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Gentoo Linux
Operating systems & Components / Operating system

app-arch/lz4
Operating systems & Components / Operating system package or component

Vendor Gentoo

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU53439

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3520

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in the fast LZ compression algorithm library. A remote attacker can pass specially crafted archive, trick the victim into opening it, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages.
app-arch/lz4 to version: 1.9.3-r1

Vulnerable software versions

Gentoo Linux: All versions

app-arch/lz4: before 1.9.3-r1

CPE2.3 External links

http://security.gentoo.org/glsa/202406-04


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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