openEuler 20.03 LTS SP4 update for mozjs78

1) Security features bypass

EUVDB-ID: #VU71228

Risk: Medium

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

CVE-ID: CVE-2023-23602

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

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

The vulnerability exists due to incorrect processing of CSP. A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from inside WebWorkers.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4

mozjs78-help: before 78.4.0-9

mozjs78-devel: before 78.4.0-9

mozjs78-debugsource: before 78.4.0-9

mozjs78-debuginfo: before 78.4.0-9

mozjs78: before 78.4.0-9

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP4:*:*:*:*:*:*
• cpe:2.3:o:openeuler:mozjs78-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:mozjs78-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:mozjs78-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:mozjs78-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:mozjs78:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-2120

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.