[UPDATE] [medium] GNU libc: Multiple vulnerabilities enable denial of service
A remote attacker can exploit multiple vulnerabilities in GNU libc to conduct a denial of service attack.
CSIRTS triage
- What
- Multiple vulnerabilities in GNU libc enable remote denial of service attacks.
- Who is affected
- Systems with affected GNU libc versions.
- Urgency
- Medium severity DoS vulnerabilities require standard patching; not exploited in the wild.
- Action
- Update GNU libc to a patched version.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch libc
Get an email when a new libc advisory drops — max one per day, one-click unsubscribe.
Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0974
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Moderate exploitation riskCVE-2024-335991.3% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 69% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2024-336001.2% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 67% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2024-336011.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 63% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2024-336020.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2024-33599 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-33600 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-33601 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-33602 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- highexploited[UPDATE] [high] Oracle Communications: Multiple vulnerabilitiescert-bund
- highexploited[UPDATE] [high] Oracle Communications: Multiple vulnerabilitiescert-bund
Recent advisories for GNU libc
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- medium[UPDATE] [mittel] GNU libc: Mehrere Schwachstellencert-bund · 2026-09-11
- critical[UPDATE] [kritisch] GNU libc: Mehrere Schwachstellencert-bund · 2026-09-11
- medium[UPDATE] [mittel] GNU libc: Schwachstelle ermöglicht Denial of Servicecert-bund · 2026-09-11
- medium[UPDATE] [mittel] GNU libc: Mehrere Schwachstellen ermöglichen Manipulation von DNS Antwortencert-bund · 2026-09-11
- low[NEU] [UNGEPATCHT] [niedrig] GNU libc: Schwachstelle ermöglicht Denial of Servicecert-bund · 2026-09-11
- medium[UPDATE] [mittel] GNU libc: Schwachstelle ermöglicht Denial of Servicecert-bund · 2026-09-11
More from CERT-Bund (BSI) Security Advisories
- high[UPDATE] [hoch] Red Hat Enterprise Linux (postgis, virtuoso-opensource): Mehrere Schwachstellen2026-09-11
- medium[UPDATE] [mittel] Red Hat Enterprise Linux: Mehrere Schwachstellen2026-09-11
- medium[UPDATE] [mittel] Linux Kernel: Schwachstelle ermöglicht Denial of Service2026-09-11
- medium[UPDATE] [mittel] Linux Kernel: Mehrere Schwachstellen2026-09-11
- high[UPDATE] [hoch] OpenSSL: Mehrere Schwachstellen2026-09-11