Denial of service in libsndfile (Alpine package)

Published: 2017-04-14

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2017-7741
CWE-ID	CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	libsndfile (Alpine package) Operating systems & Components / Operating system package or component Microsoft Lync Client/Desktop applications / Messaging software
Vendor	Alpine Linux Development Team Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Denial of service

EUVDB-ID: #VU6880

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7741

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The weakness exists due to a write memory access flaw in the flac_buffer_copy function in flac.c. A remote attacker can send a specially crafted FLAC file, trick the victim into opening it, trigger a segmentation violation and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libsndfile (Alpine package): 1.0.26-r0 - 1.0.27-r0

Microsoft Lync: 0.6.3-r2

CPE2.3

External links

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.