Backticks not treated as string delimiters in html/template
概要
Backticks not treated as string delimiters in html/template
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
Templates do not properly consider backticks (`) as Javascript string delimiters, and do not escape them as expected. Backticks are used, since ES6, for JS template literals. If a template contains a Go template action within a Javascript template literal, the contents of the action can be used to terminate the literal, injecting arbitrary Javascript code into the Go template. As ES6 template literals are rather complex, and themselves can do string interpolation, the decision was made to simply disallow Go template actions from being used inside of them (e.g. "var a = {{.}}"), since there is no obviously safe way to allow this behavior. This takes the same approach as github.com/google/safehtml. With fix, Template.Parse returns an Error when it encounters templates like this, with an ErrorCode of value 12. This ErrorCode is currently unexported, but will be exported in the release of Go 1.21. Users who rely on the previous behavior can re-enable it using the GODEBUG flag jstmpllitinterp=1, with the caveat that backticks will now be escaped. This should be used with caution.
影響パッケージ
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2023-24538 golang-1.15
- Ubuntu UBUNTU-CVE-2023-24538 golang-1.10
参照URL
- advisory pkg.go.dev
- patch go.dev
- patch go.dev
- web groups.google.com
- web security.gentoo.org
- web security.netapp.com
- web nvd.nist.gov