SB2019081101 - Heap-based buffer over-read in libmad (Alpine package)
Published: August 11, 2019
Security Bulletin ID
SB2019081101
Severity
Low
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 security vulnerability.
1) Heap-based buffer over-read (CVE-ID: CVE-2017-8374)
The vulnerability allows a remote attacker to cause DoS condition on the target ystem.
The weakness exists in the mad_bit_skip function in bit.c due to heap-based buffer over-read. A remote attacker can submit a specially crafted audio file, trick the victim into opening it, trigger memory corruption and cause the service to crash.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=7453fb90a39e6cfc2dc52b0ccf9c5c3389ac5d26
- https://git.alpinelinux.org/aports/commit/?id=156d8c03389507e7028ff39aabe8884d2db8ee04
- https://git.alpinelinux.org/aports/commit/?id=2294a75b62ad1cf324ff6287f4af98503fdf97b6
- https://git.alpinelinux.org/aports/commit/?id=3d05edaf20305afe5ca3dfe47b6f0d8a20414c30
- https://git.alpinelinux.org/aports/commit/?id=9886fee801eb1f54cfc59c9f7a8aef82496cf4c0
- https://git.alpinelinux.org/aports/commit/?id=8b2c14f6223c92deeb0513790b984e92a4a1d064