openEuler 20.03 LTS SP4 update for busybox

1) Use-after-free

EUVDB-ID: #VU93460

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-42363

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the xasprintf() function in xfuncs_printf.c. A remote attacker can trick the victim to pass a specially crafted input to the application and crash it.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4

busybox-petitboot: before 1.31.1-22

busybox-help: before 1.31.1-22

busybox-debugsource: before 1.31.1-22

busybox-debuginfo: before 1.31.1-22

busybox: before 1.31.1-22

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP4:*:*:*:*:*:*
• cpe:2.3:a:openeuler:busybox-petitboot:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:busybox-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:busybox-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:busybox-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:busybox:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1901

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.