SB2019040238 - Input validation error in mumble (Alpine package)
Published: April 2, 2019
Security Bulletin ID
SB2019040238
Severity
Medium
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) Input validation error (CVE-ID: CVE-2018-20743)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
murmur in Mumble through 1.2.19 before 2018-08-31 mishandles multiple concurrent requests that are persisted in the database, which allows remote attackers to cause a denial of service (daemon hang or crash) via a message flood.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=738ee3c9be3e7f43b6fed55917ea3b702b13d71a
- https://git.alpinelinux.org/aports/commit/?id=e48242318848b1ec3264a7c02db1d5dc1a93e6ca
- https://git.alpinelinux.org/aports/commit/?id=235782c8b6162aa4ad881f1539664449101bf8a5
- https://git.alpinelinux.org/aports/commit/?id=442ccc174a119c491694394b8050532b256cd0ed
- https://git.alpinelinux.org/aports/commit/?id=4a453130f4b0f55d01ed05035747d838f3aad53b
- https://git.alpinelinux.org/aports/commit/?id=815772ad9958ac8666893e38b9b8b48cb956c6e3