Microsoft security update for CVE-2023-39326
🔗 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-2023-39326. This page also shows what EchelonGraph holds for CVE-2023-39326, 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 products6
- 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 1.21.5-1 on CBL Mariner 2.0
- cbl2 golang 1.21.6-1 on CBL Mariner 2.0
- cbl2 msft-golang 1.21.5-1 on CBL Mariner 2.0
✅ Updates Microsoft lists: 4 updates
4 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 | 1.21.5-1 |
| — | Security Update | — |
🧭 EchelonGraph on CVE-2023-39326
- EchelonGraph score
- 5.3 MEDIUM
- 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
A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small.
Published by Go Project, the CVE Numbering Authority that assigned CVE-2023-39326, 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).