Microsoft security update for CVE-2024-4603
🔗 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-2024-4603. This page also shows what EchelonGraph holds for CVE-2024-4603, 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 products11
- 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 20240524git3e722403cd16-8 on Azure Linux 3.0
- azl3 nodejs 20.10.0-2 on Azure Linux 3.0
- azl3 nodejs 20.14.0-1 on Azure Linux 3.0
- azl3 openssl 3.3.0-2 on Azure Linux 3.0
- azl3 openssl 3.3.2-1 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 hvloader 1.0.1-5 on CBL Mariner 2.0
- cbl2 hvloader 1.0.1-6 on CBL Mariner 2.0
✅ Updates Microsoft lists: 6 updates
6 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 | 1.0.1-6 |
| — | Security Update | - |
| — | Security Update | 20240524git3e722403cd16-8 |
| — | Security Update | 20.14.0-1 |
| — | Security Update | 3.3.2-1 |
| — | Security Update | 38.0.72.2-1 |
🧭 EchelonGraph on CVE-2024-4603
- 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
Issue summary: Checking excessively long DSA keys or parameters may be very slow. Impact summary: Applications that use the functions EVP_PKEY_param_check() or EVP_PKEY_public_check() to check a DSA public key or DSA 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. The functions EVP_PKEY_param_check() or EVP_PKEY_public_check() perform various checks on DSA parameters. Some of those computations take a long time if the modulus (`p` parameter) is too large. Trying to use a very large modulus is slow and OpenSSL will not allow using public keys with a modulus which is over 10,000 bits in length for signature verification. However the key and parameter check functions do not limit the modulus size when performing the checks. An application that calls EVP_PKEY_param_check() or EVP_PKEY_public_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. These functions are not called by OpenSSL itself on untrusted DSA keys so only applications that directly call these functions may be vulnerable. Also vulnerable are the OpenSSL pkey and pkeyparam command line applications when using the `-check` option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.
Published by OpenSSL Software Foundation, the CVE Numbering Authority that assigned CVE-2024-4603, 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).