8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.413 Medium
EPSS
Percentile
97.3%
Issue Overview:
In Go before 1.10.6 and 1.11.x before 1.11.3, the “go get” command is vulnerable to remote code execution when executed with the -u flag and the import path of a malicious Go package, or a package that imports it directly or indirectly. Specifically, it is only vulnerable in GOPATH mode, but not in module mode (the distinction is documented at https://golang.org/cmd/go/#hdr-Module_aware_go_get). Using custom domains, it’s possible to arrange things so that a Git repository is cloned to a folder named “.git” by using a vanity import path that ends with “/.git”. If the Git repository root contains a “HEAD” file, a “config” file, an “objects” directory, a “refs” directory, with some work to ensure the proper ordering of operations, “go get -u” can be tricked into considering the parent directory as a repository root, and running Git commands on it. That will use the “config” file in the original Git repository root for its configuration, and if that config file contains malicious commands, they will execute on the system running “go get -u”. (CVE-2018-16873)
The crypto/x509 package of Go before 1.10.6 and 1.11.x before 1.11.3 does not limit the amount of work performed for each chain verification, which might allow attackers to craft pathological inputs leading to a CPU denial of service. Go TLS servers accepting client certificates and TLS clients are affected. (CVE-2018-16875)
In Go before 1.10.6 and 1.11.x before 1.11.3, the “go get” command is vulnerable to directory traversal when executed with the import path of a malicious Go package which contains curly braces (both ‘{’ and ‘}’ characters). Specifically, it is only vulnerable in GOPATH mode, but not in module mode (the distinction is documented at https://golang.org/cmd/go/#hdr-Module_aware_go_get). The attacker can cause an arbitrary filesystem write, which can lead to code execution. (CVE-2018-16874)
Affected Packages:
golang
Issue Correction:
Run yum update golang to update your system.
New Packages:
i686:
golang-1.10.6-1.47.amzn1.i686
golang-bin-1.10.6-1.47.amzn1.i686
noarch:
golang-misc-1.10.6-1.47.amzn1.noarch
golang-tests-1.10.6-1.47.amzn1.noarch
golang-src-1.10.6-1.47.amzn1.noarch
golang-docs-1.10.6-1.47.amzn1.noarch
src:
golang-1.10.6-1.47.amzn1.src
x86_64:
golang-bin-1.10.6-1.47.amzn1.x86_64
golang-race-1.10.6-1.47.amzn1.x86_64
golang-1.10.6-1.47.amzn1.x86_64
Red Hat: CVE-2018-16873, CVE-2018-16874, CVE-2018-16875
Mitre: CVE-2018-16873, CVE-2018-16874, CVE-2018-16875
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | golang | < 1.10.6-1.47.amzn1 | golang-1.10.6-1.47.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | golang-bin | < 1.10.6-1.47.amzn1 | golang-bin-1.10.6-1.47.amzn1.i686.rpm |
Amazon Linux | 1 | noarch | golang-misc | < 1.10.6-1.47.amzn1 | golang-misc-1.10.6-1.47.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | golang-tests | < 1.10.6-1.47.amzn1 | golang-tests-1.10.6-1.47.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | golang-src | < 1.10.6-1.47.amzn1 | golang-src-1.10.6-1.47.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | golang-docs | < 1.10.6-1.47.amzn1 | golang-docs-1.10.6-1.47.amzn1.noarch.rpm |
Amazon Linux | 1 | x86_64 | golang-bin | < 1.10.6-1.47.amzn1 | golang-bin-1.10.6-1.47.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | golang-race | < 1.10.6-1.47.amzn1 | golang-race-1.10.6-1.47.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | golang | < 1.10.6-1.47.amzn1 | golang-1.10.6-1.47.amzn1.x86_64.rpm |
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.413 Medium
EPSS
Percentile
97.3%