SB2024100815 - Fedora 39 update for dnsdist
Published: October 8, 2024
Security Bulletin ID
SB2024100815
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Reachable Assertion (CVE-ID: CVE-2024-25581)
CWE-ID: CWE-617 - Reachable Assertion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or
DNS over TLS backend. A remote attacker can send a specially crafted request for a zone transfer
(AXFR or IXFR) over DNS over HTTPS and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.