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CVE-2023-39323

Status Candidate

Overview

Line directives ("//line") can be used to bypass the restrictions on "//go:cgo_" directives, allowing blocked linker and compiler flags to be passed during compilation. This can result in unexpected execution of arbitrary code when running "go build". The line directive requires the absolute path of the file in which the directive lives, which makes exploiting this issue significantly more complex.

Related Files

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
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