Stack-based buffer overflow in sox (Alpine package)



Published: 2019-07-16
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-8356
CWE-ID CWE-121
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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sox (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) Stack-based buffer overflow

EUVDB-ID: #VU17767

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-8356

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to improper protection on an argument passed to the bitrv2 function, as defined in the fft4g.c source code file of the affected software. A remote attacker can trick the victim into executing a file that submits malicious input to the targeted system with the sox command, trigger a stack-based buffer overflow condition and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

sox (Alpine package): 14.4.2-r0 - 14.4.2-r4

External links

http://git.alpinelinux.org/aports/commit/?id=86d8165dabb2ef111678693da7e68ae4c6332bc4
http://git.alpinelinux.org/aports/commit/?id=5402121572105dacecfadf254239c4aafed6dbae
http://git.alpinelinux.org/aports/commit/?id=95942be17b87677d6a63df31d34f02cf786f29c0


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. However, proof of concept for this vulnerability is available.



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