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Attributed metadata history

REPORTPUBLIC METADATA

Qualys Finds Three Security Bypasses in Ubuntu’s Unprivileged User Namespace Restrictions

The Qualys Threat Research Unit (TRU) has uncovered three security bypasses in Ubuntu’s unprivileged user namespace restrictions. Researchers disclosed these vulnerabilities to the Ubuntu Security Team on 15 January this year, has been working with then ever since. Researchers found three distinct bypasses of these namespace restrictions, each of which would allow bad actors to [...]

Reference details

Source category
Research & news
Report title
Qualys Finds Three Security Bypasses in Ubuntu’s Unprivileged User Namespace Restrictions
First reported
Mar 31, 2025 05:45 UTC
Last reported
Mar 31, 2025 05:45 UTC
Catalog updated
Oct 08, 2026 03:46 UTC
Record ID
efd4454d3652cb5996bdb20ea392f4f0a292282deda30b4a505b48bdf42e5767

Published indicators

Network indicators are visibly defanged. This page does not make them clickable or send them to another service.

No validated file hashes or network indicators are stored for this record.

Source observations

src_1f0b5f6261defac957

Source-provided label
Not reported
Evidence class
mentioned in report
Confidence
Not reported
Observed
Mar 31, 2025 05:45 UTC
Retrieved
Oct 08, 2026 03:46 UTC

This record contains metadata and attribution only. It does not host, download, unpack, render, or execute malware samples.

Feed collection status

Sources represented on this page. Publication and observation dates describe the content; successful batch dates describe local collection. A recent batch does not certify complete coverage or current provider availability.

1 sources: 0 stale, 0 needing attention, 0 paused, 1 unverified.

Review source update dates and status
  • src_1f0b5f6261defac957Collection status unverifiedLast successful batch: Unverified

Stale means older than twice the recorded collection interval, with a minimum of one hour; without an interval, the threshold is 24 hours. Cached content remains available while a feed is stale, paused, or unverified.