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CVE Record

CVE-2011-3618: atop: symlink attack possible due to insecure tempfile handling

atop: symlink attack possible due to insecure tempfile handling

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This issue affects the atop system monitoring tool. Older versions may create or use temporary files unsafely, allowing an attacker with local access to abuse symbolic links. The bundle does not provide severity scoring, proof of exploitation, or a named patch. Business urgency depends on whether affected atop versions exist on shared or sensitive Linux hosts.

Executive priority

Handle as a targeted hygiene item, not an emergency, unless affected versions are present on shared or high-value systems. The lack of severity data and exploitation evidence lowers confidence, but local tempfile flaws can matter on multi-user servers.

Technical view

atop through 1.26 reportedly has insecure temporary-file handling that permits a symlink attack. The provided sources do not include CVSS, CWE mapping, privilege impact, prerequisites, or fixed package details. Treat this as a local tempfile-handling weakness until Debian, Red Hat, or upstream package guidance confirms exact status.

Likely exposure

Exposure is limited to systems running atop through version 1.26. The sources do not identify affected operating-system packages, default installations, or remote attack surface. Highest concern is multi-user Linux environments where untrusted local users can interact with temporary-file locations.

Exploitation context

No active exploitation is stated in the supplied sources, and the CVE is not marked KEV. The described issue is a symlink attack, which generally implies local filesystem manipulation, but the bundle does not provide exploit details, impact boundaries, or real-world activity evidence.

Researcher notes

The bundle is sparse: no CVSS, CWE, patch reference, impact statement, or exploit-status detail. Analysis should avoid assuming privilege escalation or remote reachability. Focus validation on package presence, version, distribution advisory status, and local-user exposure.

Mitigation direction

  • Inventory systems for installed atop versions through 1.26.
  • Check Debian and Red Hat advisories for fixed package status.
  • Upgrade or remove affected atop packages where vendor guidance recommends it.
  • Restrict local shell access on systems where affected atop remains installed.
  • Monitor vendor trackers for confirmed remediation details.

Validation and detection

  • Confirm atop package name and version on Linux assets.
  • Compare installed versions against the affected range: through 1.26.
  • Review Debian and Red Hat tracker status for each distribution release.
  • Check whether affected hosts allow untrusted local user access.
  • Document compensating controls if vendor fixes are unavailable.
Prepared
Confidence
medium
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

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CVE-2011-3618 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
atopatopthrough 1.26Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.