Privilege Escalation in Arm Mbed TLS (CVE-2018-19608)
Summary
Vulnerability in Arm Mbed TLS (CVE-2018-19608). Confidential information can be exposed externally.
Original description
The description as published by the source.
Arm Mbed TLS before 2.14.1, before 2.7.8, and before 2.1.17 allows a local unprivileged attacker to recover the plaintext of RSA decryption, which is used in RSA-without-(EC)DH(E) cipher suites.
Source: NIST National Vulnerability Database NVD GitHub Advisory
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-2018-19608 has been found in Arm Mbed TLS.
Confidential information can be exposed externally. CVSS score: 4.7/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Arm Mbed TLS CVE-2018-19608" on the vendor's site.
CVE-2018-19608 (Arm Mbed TLS) — CWE-269 / CVSS v3 4.7
Attack vector: local / 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-269) exists in Arm Mbed TLS.
Check the vendor advisory for the affected versions of Arm Mbed TLS.
Severity: Medium (CVSS 4.7/10). 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 Arm 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-2018-19608 mbedtls Fixed in: 2.14.1-r0
- Debian DEBIAN-CVE-2018-19608 mbedtls Fixed in: 2.14.1-1
References
- advisory cat.eyalro.net
- web tls.mbed.org
- web tls.mbed.org
- web nvd.nist.gov
- web cat.eyalro.net
- web github.com