openEuler 22.03 LTS update for zstd

1) Buffer overflow

EUVDB-ID: #VU74201

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

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 repository.

Vulnerable software versions

openEuler: 22.03 LTS

zstd-help: before 1.5.0-4

zstd-debuginfo: before 1.5.0-4

zstd-debugsource: before 1.5.0-4

zstd-devel: before 1.5.0-4

zstd: before 1.5.0-4

CPE2.3

• cpe:2.3:o:openeuler:openeuler:22.03:LTS:*:*:*:*:*:*
• cpe:2.3:a:openeuler:zstd-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:zstd-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:zstd-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:zstd-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:zstd:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1214

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.