SB2018030211 - Debian update for trafficserver
Published: March 2, 2018
Security Bulletin ID
SB2018030211
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) HTTP response splitting (CVE-ID: CVE-2017-5660)
CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote unauthenticated attacker to perform HTTP response splitting attack.
The weakness exists due to improper handling of line-folded HTTP headers and host headers. A remote attacker can send a specially crafted request, trigger a different upstream proxy server to be used and cause the service to crash.
2) Improper input validation (CVE-ID: CVE-2017-7671)
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:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists due to improper Transport Layer Security (TLS) handshake operations. A remote attacker can send specially crafted input, trigger the TLS handshake process to become unresponsive and cause the service to crash.
Remediation
Install update from vendor's website.