NULL pointer dereference in 389-ds-base - CVE-2022-2850
Published: September 6, 2022
Vulnerability identifier: #VU66990
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-2850
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: 389 Directory Server Project
Affected software:
389-ds-base
389-ds-base
Detailed vulnerability description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the sync_create_state_control() function when running a sync_repl client. A remote authenticated user can pass a malformed cookie in a query and perform a denial of service (DoS) attack.
Note, the vulnerability exists due to incomplete fix for #VU54107 (CVE-2021-3514).
How to mitigate CVE-2022-2850
Install updates from vendor's website.