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CRITICAL A3

[UPDATE] GNU libc: Multiple Vulnerabilities

A BSI Warn- und Informationsdienst (WID): Schwachstellen-Informationen (Security Advisories) ·

Admiralty grading (A–F · 1–6)

Source reliability

  • A Completely reliable
  • B Usually reliable
  • C Fairly reliable
  • D Not usually reliable
  • E Unreliable
  • F Cannot be judged

Information credibility

  • 1 Confirmed
  • 2 Probably true
  • 3 Possibly true
  • 4 Doubtful
  • 5 Improbable
  • 6 Cannot be judged

NATO Admiralty (AJP-2.1) grades confidence, independent of the risk score. Cross-source corroboration isn't tracked for non-CVE news, so single-source items are capped at a lower credibility number; a low number does not imply low quality.

Key insight

This is a BSI advisory on multiple GNU libc vulnerabilities without specific CVE identification; the 'UPDATE' designation suggests a follow-up notification and requires verification of specifically affected versions in the production environment.

Description

GNU libc contains multiple vulnerabilities that allow a remote attacker to execute arbitrary code, cause a denial-of-service condition, or disclose sensitive information. As a core C library, GNU libc is present in virtually all Linux systems. The BSI advisory classifies the vulnerabilities as critical; without explicit CVE numbers, precise scoping is required. The impact affects all libc-based applications system-wide.

Risk score

47
cvss base
45.00
kev bonus
0.00
epss bonus
0.00
poc bonus
0.00
raw before weight
45.00
industry weight
1.10
freshness factor
1.00
exploitability factor
1.00
days old
0.00
vendor mismatch penalty
0.00
consensus penalty
-3.00

Path: operational

Consensus check

The pipeline self-checks before delivery. These rules lowered the score:

  • TTP_SKIPPED TTP mapping skipped (placeholder or aggregation article) −3
Consensus penalty:
−3.0
Total penalty:
−3.0
ESC