SB2017042531 - Assertion failure in bind (Alpine package)
Published: April 25, 2017
Security Bulletin ID
SB2017042531
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) Assertion failure (CVE-ID: CVE-2017-3137)
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 improper input validation when processing query response containing CNAME or DNAME resource records in an unusual order in BIND. A remote attacker can trigger assertion failure and crash BIND application.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=2bfbca724f8810840c93ea17e972afbb84233739
- https://git.alpinelinux.org/aports/commit/?id=b3fd1eb4e8e0f578e1fbaf76d9903a9012274dee
- https://git.alpinelinux.org/aports/commit/?id=4105cc0c96fb20b95bd9f54160b62af7ca88cd72
- https://git.alpinelinux.org/aports/commit/?id=678f234c682be06018570ae854e6749b50a56528
- https://git.alpinelinux.org/aports/commit/?id=e049b1d35bb80fed35d73f2ddbdf64484041442d
- https://git.alpinelinux.org/aports/commit/?id=e1c82f92f256c814e32451da7b302a8d83f94800
- https://git.alpinelinux.org/aports/commit/?id=2542b4ba677184fdcb83fc2fdf9dcf5c2dd6fbb8
- https://git.alpinelinux.org/aports/commit/?id=ec799e60eab57b781fa19ba2f7e79f65b7ea4cbe