Input validation error in bind (Alpine package)

1) Input validation error

EUVDB-ID: #VU31952

Risk: Medium

CVSSv4.0: 4.9 [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]

CVE-ID: CVE-2015-8704

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.

apl_42.c in ISC BIND 9.x before 9.9.8-P3, 9.9.x, and 9.10.x before 9.10.3-P3 allows remote authenticated users to cause a denial of service (INSIST assertion failure and daemon exit) via a malformed Address Prefix List (APL) record.

Mitigation

Install update from vendor's website.

Vulnerable software versions

bind (Alpine package): 9.10.3_p2-r0

CPE2.3

• cpe:2.3:o:alpine:bind_alpine_package:9.10.3_p2-r0:*:*:*:*:alpine_linux:*:3.1

External links

https://git.alpinelinux.org/aports/commit/?id=b527cfa00a7793b4db08311ff32263dce31eeae7
https://git.alpinelinux.org/aports/commit/?id=1cff01908c342a676deca5a1d7261020c6241d2d
https://git.alpinelinux.org/aports/commit/?id=efcb126bc36e67ceb010f9ca31daf5427d06efef
https://git.alpinelinux.org/aports/commit/?id=dff85e5b601949d4052c57624e404e5788eec9d0
https://git.alpinelinux.org/aports/commit/?id=a4e3789df52208f238990273e87a14b5556b9f69

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.