SB2022111902 - Security restrictions bypass in MaraDNS
Published: November 19, 2022 Updated: June 30, 2023
Security Bulletin ID
SB2022111902
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2022-30256)
The vulnerability allows a remote attacker to bypass expected security restrictions.
The vulnerability exists due to the way MaraDNS handles cached domain names. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains.
Remediation
Install update from vendor's website.
References
- https://maradns.samiam.org/
- https://maradns.samiam.org/security.html#CVE-2022-30256
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3VSMLJX25MXGQ6A7UPOGK7VPUVDESPHL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NB7LDZM5AGWC5BHHQHW6CP5OFNBBKFOQ/
- https://lists.debian.org/debian-lts-announce/2023/06/msg00019.html
- https://www.debian.org/security/2023/dsa-5441