openEuler 20.03 LTS SP4 update for mozjs78

1) Input validation error

EUVDB-ID: #VU52346

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29946

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of user-supplied input. Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4

mozjs78-help: before 78.4.0-4

mozjs78-debugsource: before 78.4.0-4

mozjs78-debuginfo: before 78.4.0-4

mozjs78-devel: before 78.4.0-4

mozjs78: before 78.4.0-4

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1676

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.