Microsoft security update for CVE-2023-5678
🔗 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-2023-5678. This page also shows what EchelonGraph holds for CVE-2023-5678, 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 products12
- azl3 cloud-hypervisor-cvm 38.0.72-2 on Azure Linux 3.0
- azl3 cloud-hypervisor-cvm 38.0.72.2-1 on Azure Linux 3.0
- azl3 edk2 20230301gitf80f052277c8-38 on Azure Linux 3.0
- azl3 kata-containers 3.2.0.azl0-2 on Azure Linux 3.0
- azl3 kata-containers 3.2.0.azl1-1 on Azure Linux 3.0
- azl3 openssl 1.1.1k-28 on Azure Linux 3.0
- cbl2 cloud-hypervisor-cvm 38.0.72-1 on CBL Mariner 2.0
- cbl2 cloud-hypervisor-cvm 38.0.72.2-1 on CBL Mariner 2.0
- cbl2 edk2 20230301gitf80f052277c8-38 on CBL Mariner 2.0
- cbl2 hvloader 1.0.1-11 on CBL Mariner 2.0
- cbl2 hvloader 1.0.1-9 on CBL Mariner 2.0
- cbl2 openssl 1.1.1k-28 on CBL Mariner 2.0
✅ Updates Microsoft lists: 7 updates
7 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 | 3.2.0.azl1-1 |
| — | Security Update | 38.0.72.2-1 |
| — | Security Update | - |
| — | Security Update | 1.0.1-9 |
| — | Security Update | 1.1.1k-28 |
| — | Security Update | 20230301gitf80f052277c8-38 |
| — | Security Update | 1.0.1-3 |
🧭 EchelonGraph on CVE-2023-5678
- EchelonGraph score
- 7.5 HIGH
- 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
Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
Published by OpenSSL Software Foundation, the CVE Numbering Authority that assigned CVE-2023-5678, 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).