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Ubuntu Security Notice USN-6574-1

Ubuntu Security Notice USN-6574-1
Posted Jan 11, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6574-1 - Takeshi Kaneko discovered that Go did not properly handle comments and special tags in the script context of html/template module. An attacker could possibly use this issue to inject Javascript code and perform a cross site scripting attack. This issue only affected Go 1.20 in Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 23.04. It was discovered that Go did not properly validate the "//go:cgo_" directives during compilation. An attacker could possibly use this issue to inject arbitrary code during compile time.

tags | advisory, arbitrary, javascript, xss
systems | linux, ubuntu
advisories | CVE-2023-39318, CVE-2023-39323, CVE-2023-39326, CVE-2023-45285
SHA-256 | b8c2a5761a1b9b637336f2af66c0577c0e91e5d6928b1d69d773c8f5060e8589

Ubuntu Security Notice USN-6574-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-6574-1
January 11, 2024

Go vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in Go.

Software Description:
- golang-1.20: Go programming language compiler
- golang-1.21: Go programming language compiler

Details:

Takeshi Kaneko discovered that Go did not properly handle comments and
special tags in the script context of html/template module. An attacker
could possibly use this issue to inject Javascript code and perform a cross
site scripting attack. This issue only affected Go 1.20 in Ubuntu 20.04 LTS,
Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-39318, CVE-2023-39319)

It was discovered that Go did not properly validate the "//go:cgo_"
directives during compilation. An attacker could possibly use this issue to
inject arbitrary code during compile time. (CVE-2023-39323)

It was discovered that Go did not limit the number of simultaneously
executing handler goroutines in the net/http module. An attacker could
possibly use this issue to cause a panic resulting into a denial of service.
(CVE-2023-39325, CVE-2023-44487)

It was discovered that the Go net/http module did not properly validate the
chunk extensions reading from a request or response body. An attacker could
possibly use this issue to read sensitive information. (CVE-2023-39326)

It was discovered that Go did not properly validate the insecure "git://"
protocol when using go get to fetch a module with the ".git" suffix. An
attacker could possibly use this issue to bypass secure protocol checks.
(CVE-2023-45285)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.10:
golang-1.20 1.20.8-1ubuntu0.23.10.1
golang-1.20-go 1.20.8-1ubuntu0.23.10.1
golang-1.20-src 1.20.8-1ubuntu0.23.10.1
golang-1.21 1.21.1-1ubuntu0.23.10.1
golang-1.21-go 1.21.1-1ubuntu0.23.10.1
golang-1.21-src 1.21.1-1ubuntu0.23.10.1

Ubuntu 23.04:
golang-1.20 1.20.3-1ubuntu0.2
golang-1.20-go 1.20.3-1ubuntu0.2
golang-1.20-src 1.20.3-1ubuntu0.2
golang-1.21 1.21.1-1~ubuntu23.04.2
golang-1.21-go 1.21.1-1~ubuntu23.04.2
golang-1.21-src 1.21.1-1~ubuntu23.04.2

Ubuntu 22.04 LTS:
golang-1.20 1.20.3-1ubuntu0.1~22.04.1
golang-1.20-go 1.20.3-1ubuntu0.1~22.04.1
golang-1.20-src 1.20.3-1ubuntu0.1~22.04.1
golang-1.21 1.21.1-1~ubuntu22.04.2
golang-1.21-go 1.21.1-1~ubuntu22.04.2
golang-1.21-src 1.21.1-1~ubuntu22.04.2

Ubuntu 20.04 LTS:
golang-1.20 1.20.3-1ubuntu0.1~20.04.1
golang-1.20-go 1.20.3-1ubuntu0.1~20.04.1
golang-1.20-src 1.20.3-1ubuntu0.1~20.04.1
golang-1.21 1.21.1-1~ubuntu20.04.2
golang-1.21-go 1.21.1-1~ubuntu20.04.2
golang-1.21-src 1.21.1-1~ubuntu20.04.2

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6574-1
CVE-2023-39318, CVE-2023-39319, CVE-2023-39323, CVE-2023-39325,
CVE-2023-39326, CVE-2023-44487, CVE-2023-45285

Package Information:
https://launchpad.net/ubuntu/+source/golang-1.20/1.20.8-1ubuntu0.23.10.1
https://launchpad.net/ubuntu/+source/golang-1.21/1.21.1-1ubuntu0.23.10.1
https://launchpad.net/ubuntu/+source/golang-1.20/1.20.3-1ubuntu0.2
https://launchpad.net/ubuntu/+source/golang-1.21/1.21.1-1~ubuntu23.04.2
https://launchpad.net/ubuntu/+source/golang-1.20/1.20.3-1ubuntu0.1~22.04.1
https://launchpad.net/ubuntu/+source/golang-1.21/1.21.1-1~ubuntu22.04.2
https://launchpad.net/ubuntu/+source/golang-1.20/1.20.3-1ubuntu0.1~20.04.1
https://launchpad.net/ubuntu/+source/golang-1.21/1.21.1-1~ubuntu20.04.2
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