Denial of service in Facebook Zstandard



Published: 2023-03-30
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-4899
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Zstandard
Universal components / Libraries / Libraries used by multiple products

Vendor Facebook Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU74201

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-4899

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in util.c when processing empty arguments in the command line tool. A remote attacker can pass an empty string as an argument, trigger buffer underflow and crash the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zstandard: 1.0.0 - 1.5.2

External links

http://github.com/facebook/zstd/pull/3220
http://bugzilla.redhat.com/show_bug.cgi?id=2179864
http://bugzilla.suse.com/show_bug.cgi?id=1209533


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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