SB2017091536 - Improper input validation in ruby (Alpine package)
Published: September 15, 2017
Security Bulletin ID
SB2017091536
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2017-14033)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to buffer underrun. A remote attacker can provide a specially crafted string to the OpenSSL::ASN1 decode function to cause the target interpreter to crash.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=247ca66997e7e154df1a7fbf2d521cdf0e055200
- https://git.alpinelinux.org/aports/commit/?id=473dbc72ff1dad4cee848e9e9359b85d382daaaa
- https://git.alpinelinux.org/aports/commit/?id=9634aa1a2e1e9a1ecd421f6308a3e5e799531370
- https://git.alpinelinux.org/aports/commit/?id=4bc390578181cbfbf21af60f9434190448063933
- https://git.alpinelinux.org/aports/commit/?id=ebd760c70a8114510ac144d9ae736ed4ed131615
- https://git.alpinelinux.org/aports/commit/?id=a81871a4d4e0e81d47e0753d7661e774f69a4222