SB2019020202 - Debian update for golang-1.8
Published: February 2, 2019
Security Bulletin ID
SB2019020202
Severity
High
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Command injection (CVE-ID: CVE-2018-6574)
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.The weakness exists due to "go get" remote command execution during source code build, by leveraging the gcc or clang plugin feature, because -fplugin= and -plugin= arguments were not blocked. A remote attacker can execute arbitrary commands.
2) OS command execution (CVE-ID: CVE-2018-7187)
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.The weakness exists in the "go get" implementation due to insufficient validation of the import path (get/vcs.go only checks for "://" anywhere in the string) when the -insecure command-line option is used. A remote attacker can trick the victim into visiting a specially crafted website, inject OS commands and execute arbitrary code.
3) Resource exhaustion (CVE-ID: CVE-2019-6486)
The vulnerability allows a remote attacker to cause DoS condition.
The vulnerability exists in the crypto/elliptic implementations of the P-521 and P-384 elliptic curves due to insufficient validation of user-supplied input. A remote attacker can submit specially crafted inputs via TLS handshakes, X.509 certificates, JWT tokens, ECDH shares or ECDSA signatures, consume excessive amounts of CPU and cause the service to crash.
Remediation
Install update from vendor's website.