Microsoft security update for CVE-2023-24538
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24538. This page also shows what EchelonGraph holds for CVE-2023-24538, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products7
- azl3 golang 1.19.8-1 on Azure Linux 3.0
- azl3 golang 1.27.0-1 on Azure Linux 3.0
- cbl2 golang 1.17.13-2 on CBL Mariner 2.0
- cbl2 golang 1.18.8-7 on CBL Mariner 2.0
- cbl2 golang 1.19.8-1 on CBL Mariner 2.0
- cbl2 golang 1.21.6-1 on CBL Mariner 2.0
- cbl2 msft-golang 1.20.11-1 on CBL Mariner 2.0
✅ Updates Microsoft lists: 5 updates
5 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | — |
| — | Security Update | 1.21.6-1 |
| — | Security Update | 1.20.11-1 |
| — | Security Update | 1.19.8-1 |
| — | Security Update | — |
🧭 EchelonGraph on CVE-2023-24538
- EchelonGraph score
- 9.8 CRITICAL
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
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.
Published by Go Project, the CVE Numbering Authority that assigned CVE-2023-24538, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).