Anolis OS update for bluez

1) Memory leak

EUVDB-ID: #VU79524

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:P/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-2021-41229

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in sdp_cstate_alloc_buf() function. A remote attacker can send specially crafted packets to the device and perform denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

bluez-obexd: before 5.56-3

bluez-libs: before 5.56-3

bluez-hid2hci: before 5.56-3

bluez-cups: before 5.56-3

bluez: before 5.56-3

CPE2.3

• cpe:2.3:o:openanolis:anolis_os:8:*:*:*:*:*:*:*
• cpe:2.3:a:openanolis:bluez-obexd:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:bluez-libs:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:bluez-hid2hci:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:bluez-cups:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:bluez:*:*:*:*:*:anolis_os:*:*

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0437

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.