Debian update for golang-1.8
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2018-6574 CVE-2018-7187 CVE-2019-6486 |
| CWE-ID | CWE-77 CWE-78 CWE-400 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #3 is available. |
| Vulnerable software Subscribe |
golang-1.8 (Debian package) Operating systems & Components / Operating system package or component |
| Vendor | Debian |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Command injection
EUVDB-ID: #VU12162
Risk: Low
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2018-6574
CWE-ID:
CWE-77 - Command injection
Exploit availability: Yes
DescriptionThe 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.
Update the affected package to version: 1.8.1-1+deb9u1
Vulnerable software versionsgolang-1.8 (Debian package): 1.8.1-1
External linkshttp://www.debian.org/security/2019/dsa-4380
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) OS command execution
EUVDB-ID: #VU11851
Risk: High
CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-7187
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: No
DescriptionThe 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.
Update the affected package to version: 1.8.1-1+deb9u1
Vulnerable software versionsgolang-1.8 (Debian package): 1.8.1-1
External linkshttp://www.debian.org/security/2019/dsa-4380
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Resource exhaustion
EUVDB-ID: #VU17245
Risk: Low
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-6486
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe 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.
MitigationUpdate the affected package to version: 1.8.1-1+deb9u1
Vulnerable software versionsgolang-1.8 (Debian package): 1.8.1-1
External linkshttp://www.debian.org/security/2019/dsa-4380
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
