Vulnerability in Debian Linux (CVE-2017-0899)
Summary
Vulnerability in Debian Linux (CVE-2017-0899). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences.
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-2017-0899 has been found in Debian Linux.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Debian Linux CVE-2017-0899" on the vendor's site.
CVE-2017-0899 (Debian Linux) — CWE-150 / CVSS v3 9.8
Attack vector: remote (network-reachable) / 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-150) exists in Debian Linux.
Check the vendor advisory for the affected versions of Debian Linux.
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.
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 Debian Linux 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-2017-0899 ruby Fixed in: 2.4.2-r0
- Debian DEBIAN-CVE-2017-0899 rubygems Fixed in: 3.2.0~rc.1-1
- Ubuntu UBUNTU-CVE-2017-0899 ruby1.9.1 Fixed in: 1.9.3.484-2ubuntu1.5
References
- advisory securityfocus.com
- advisory securitytracker.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory lists.debian.org
- advisory security.gentoo.org
- advisory debian.org
- exploit hackerone.com
- patch blog.rubygems.org
- patch github.com
- patch github.com