Security readout for executives and security teams
Plain-English summary
This CVE describes an old local availability issue in tuned: insecure ktune service permissions could let a local user kill running processes. The provided data does not include a CVSS score, confirmed exploitation, or detailed vendor fix text.
Executive priority
Do not treat this as an internet-facing emergency from the supplied evidence. Prioritize routine remediation for older shared Linux systems where untrusted local users exist or uptime is operationally important.
Technical view
tuned before 2.x is described as allowing local users to terminate running processes through insecure permissions on tuned's ktune service. Evidence is sparse and internally inconsistent: the affected list names tuned 2.10.0-1 while the description says before 2.x.
Likely exposure
Exposure is most plausible on older Linux systems that installed tuned with the ktune service enabled. Remote-only attackers are not implicated by the supplied sources; the described attacker must already have local user access.
Exploitation context
The source bundle does not show KEV listing, active exploitation, public exploit use, or exploit maturity. Treat this as a local denial-of-service style risk unless vendor advisories provide stronger impact detail.
Researcher notes
The record lacks CVSS, CWE, and detailed remediation text. Validate against primary vendor trackers before asserting exact affected versions, because the supplied affected version conflicts with the description's before-2.x wording.
Mitigation direction
- Identify systems running tuned and the ktune service.
- Check distribution vendor advisories for the exact fixed tuned package.
- Prioritize updates on shared multi-user systems.
- Disable unused tuned or ktune functionality where vendor-supported.
- Restrict local shell access to trusted users.
Validation and detection
- Inventory installed tuned versions across Linux hosts.
- Confirm whether ktune service permissions are vendor-default or locally modified.
- Check whether ktune service is enabled or running.
- Compare installed packages against Debian and Red Hat guidance.
- Review local user populations on exposed shared systems.
Public sources used
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.
CVE-2013-1820 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
- https://security-tracker.debian.org/tracker/CVE-2013-1820CVE reference · x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-1820CVE reference · x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=918233CVE reference · x_refsource_MISC
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.