SB2018081102 - Assertion failure in bind (Alpine package)
Published: August 11, 2018
Security Bulletin ID
SB2018081102
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 security vulnerability.
1) Assertion failure (CVE-ID: CVE-2018-5740)
The vulnerability allows an attacker to perform denial of service (DoS) attack.
The vulnerability exists due to INSIST assertion failure in name.c when processing recursive queries. A remote attacker can trigger denial of service conditions if the affected server is configured with enabled "deny-answer-aliases" feature.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=6a7a5020482526d5f8f38aa59bf9da6e245d2264
- https://git.alpinelinux.org/aports/commit/?id=a72d66cd67f20dec8e4eb3d6f2b387a11a0bfbf8
- https://git.alpinelinux.org/aports/commit/?id=38babe0be83e60e85a304ad8ab72000df9736a30
- https://git.alpinelinux.org/aports/commit/?id=37ad006279f2ad8d29a3de1622a8d8e08e0d9814
- https://git.alpinelinux.org/aports/commit/?id=a72a5291c3473990e2ec0256973c8ea1b78a2f77
- https://git.alpinelinux.org/aports/commit/?id=4ec71c5ae6c53d4cf8c9a8f89a4ea19656a56b71
- https://git.alpinelinux.org/aports/commit/?id=5b89784c2f0f07bfbb31371b85fd9c1be3acada5