Security readout for executives and security teams
RubyGems before 2.6.13 could mishandle malicious terminal escape characters inside gem metadata. If someone printed or viewed a crafted gem specification in a terminal, the terminal could process those escape sequences, creating a developer or CI-console risk rather than a typical remote server compromise. Exposure is most likely on developer workstations, build systems, or administrative shells using RubyGems before 2.6.13 and inspecting metadata from untrusted or malicious gems. Treat as a focused developer-tooling remediation. Prioritize systems that handle untrusted gems or expose CI/admin terminals, but do not treat it as confirmed mass exploitation based on the provided evidence. Mitigation focus: Upgrade RubyGems to 2.6.13 or later.; Apply applicable Red Hat, Debian, Gentoo, or distribution RubyGems security updates.; Avoid printing untrusted gem specifications on vulnerable systems until remediated..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-150: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2017-0899 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- RHSA-2018:0585CVE reference · vendor-advisory, x_refsource_REDHAT
- DSA-3966CVE reference · vendor-advisory, x_refsource_DEBIAN
- RHSA-2018:0378CVE reference · vendor-advisory, x_refsource_REDHAT
- https://hackerone.com/reports/226335CVE reference · x_refsource_MISC
- https://github.com/rubygems/rubygems/commit/1bcbc7fe637b03145401ec9c094066285934a7f1CVE reference · x_refsource_MISC
- https://github.com/rubygems/rubygems/commit/ef0aa611effb5f54d40c7fba6e8235eb43c5a491CVE reference · x_refsource_MISC
- RHSA-2017:3485CVE reference · vendor-advisory, x_refsource_REDHAT
- [debian-lts-announce] 20180714 [SECURITY] [DLA 1421-1] ruby2.1 security updateCVE reference · mailing-list, x_refsource_MLIST
- RHSA-2018:0583CVE reference · vendor-advisory, x_refsource_REDHAT
- GLSA-201710-01CVE reference · vendor-advisory, x_refsource_GENTOO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Escape, Meta, or Control Sequences
Improper Neutralization of Escape, Meta, or Control Sequences represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.