Vulnerability in Mbed TLS (CVE-2024-45157)
Summary
Vulnerability in Mbed TLS (CVE-2024-45157). Confidential information can be exposed externally.
Original description
The description as published by the source.
An issue was discovered in Mbed TLS before 2.28.9 and 3.x before 3.6.1, in which the user-selected algorithm is not used. Unlike previously documented, enabling MBEDTLS_PSA_HMAC_DRBG_MD_TYPE does not cause the PSA subsystem to use HMAC_DRBG: it uses HMAC_DRBG only when MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG and MBEDTLS_CTR_DRBG_C are disabled.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2024-45157 has been found in Mbed TLS.
Confidential information can be exposed externally. CVSS score: 5.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Mbed TLS CVE-2024-45157" on the vendor's site.
CVE-2024-45157 (Mbed TLS) — CWE-696 / CVSS v3 5.1
Attack vector: local / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-696) exists in Mbed TLS.
Check the vendor advisory for the affected versions of Mbed TLS.
Severity: Medium (CVSS 5.1/10). Confidential information can be exposed externally.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Mbed TLS を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2024-45157 mbedtls Fixed in: 2.28.9-r0
- Debian DEBIAN-CVE-2024-45157 mbedtls
References
- patch cve@mitre.org
- patch cve@mitre.org
- web cve@mitre.org