Use-after-free error in bind (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-3145
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
 bind (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free error

EUVDB-ID: #VU10030

Risk: Low

CVSSv4.0: 6.6 [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:Clear]

CVE-ID: CVE-2017-3145

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to improper sequencing cleanup operations on upstream recursion fetch contexts. A remote attacker can trigger use-after-free error that may lead to assertion failure and cause the BIND name server (named) process to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

bind (Alpine package): 9.10.4_p8-r1 - 9.10.6-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=071ec64d669cacbc578f4768912be8c27488ddb8
https://git.alpinelinux.org/aports/commit/?id=1bc9533e929b3ad0f241338871b7c7dd64e2d940
https://git.alpinelinux.org/aports/commit/?id=3bb085e3385115c783951d713392f492751cd08b
https://git.alpinelinux.org/aports/commit/?id=2bfbca724f8810840c93ea17e972afbb84233739
https://git.alpinelinux.org/aports/commit/?id=b3fd1eb4e8e0f578e1fbaf76d9903a9012274dee


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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