SB2022111581 - Red Hat Enterprise Linux 9 update for 389-ds-base
Published: November 15, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2022-0918)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when handling network packets. A remote attacker can create a single TCP packet to the LDAP port, trigger a segmentation fault and crash the slapd daemon.
2) Insufficient Session Expiration (CVE-ID: CVE-2022-0996)
CWE-ID: CWE-613 - Insufficient Session Expiration
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient session expiration issue that allows expired passwords to access the database to cause improper authentication. A remote non-authenticated attacker can obtain or guess session token and gain unauthorized access to session that belongs to another user.
3) NULL pointer dereference (CVE-ID: CVE-2022-2850)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 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
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).
Remediation
Install update from vendor's website.