SB2017081717 - Ubuntu update for c-ares
Published: August 17, 2017
Security Bulletin ID
SB2017081717
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) Out-of-bounds read (CVE-ID: CVE-2017-1000381)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack and gain access to potentially sensitive data.
The vulnerability exists due to a boundary error in ares_parse_naptr_reply() function when processing NAPTR responses. A remote attacker can send a specially crafted DNS response to vulnerable application and perform denial of service attack or gain access to potentially sensitive data.
Remediation
Install update from vendor's website.