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Vulnerability record · public intelligence
CVE-2011-5320
MEDIUM

CVE-2011-5320

Published Oct 18, 2017 · Updated Oct 23, 2026

Severity · CVSSMEDIUM · 6.2
Known exploitationNot listed
EPSS / likelihood0.47%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Oct 23, 2026

scanf and related functions in glibc before 2.15 allow local users to cause a denial of service (segmentation fault) via a large string of 0s.

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

scanf and related functions in glibc before 2.15 allow local users to cause a denial of service (segmentation fault) via a large string of 0s.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

CVENVDEPSS
SSVC priority
LOW
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. sourceware.org ↗
  2. sourceware.org ↗
  3. marc.info ↗
  4. [oss-security] 20150312 Re: CVE request: glibc scanf implementation crashes on certain inputs ↗
  5. bugzilla.redhat.com ↗
  6. sourceware.org ↗

Record history

Published Oct 18, 2017 · Last refreshed Oct 23, 2026