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USN-8788-1: ClamAV vulnerabilities

Fonte ufficiale
Sintesi operativa EudorIA

Cosa significa

Priorità 60/100

ClamAV, un'utilità antivirus per Unix, presenta diverse vulnerabilità che permettono a un attaccante remoto di causare un denial of service. Le vulnerabilità interessano file ZIP, PESpin, GPT, PDF, Mach-O e XAR. La patch è disponibile per diverse versioni di ClamAV. L'attacco non è sfruttato attivamente in rete.

Perché conta

Le vulnerabilità di ClamAV possono portare a un denial of service, compromettendo la protezione antivirus e la continuità operativa. Le PMI italiane dipendono spesso da ClamAV per la sicurezza dei loro sistemi, rendendo questa vulnerabilità particolarmente rilevante.

MITRE ATT&CKT1562 · Impair Defenses *
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Your submission was sent successfully! Close Thank you for contacting us. A member of our team will be in touch shortly. Close You have successfully unsubscribed! Close Thank you for signing up for our newsletter! In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team. Close Your preferences have been successfully updated. Close notification Please try again or file a bug report. Close USN-8788-1: ClamAV vulnerabilities Several security issues were fixed in ClamAV. clamav - Anti-virus utility for Unix It was discovered that ClamAV incorrectly handled certain zip archive files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. ( CVE-2026-20337 , CVE-2026-20338 ) It was discovered that ClamAV incorrectly handled certain PESpin files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. ( CVE-2026-20339 ) It was discovered that ClamAV incorrectly handled certain GPT files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. ( CVE-2026-20345 ) It was discovered that ClamAV incorrectly handled certain PDF files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of... It was discovered that ClamAV incorrectly handled certain zip archive files. A remote attacker could possibly use this issue to cause ClamAV to

Benefici operativi potenziali

  • Riduzione della superficie esposta a vulnerabilità note.
  • Miglioramento della resilienza contro attacchi di denial of service.
  • Aumento della conformità alle normative di sicurezza.
Indicazioni da confermare sul perimetro tecnico e organizzativo del cliente.
Controlli pertinentiPatch managementMonitoraggio / SIEMFirewall NGFW / IPSSegmentazione di rete
DestinatariITSOC
Centro informazioni

Traduzione in elaborazione

Ubuntu Security

Il contenuto ufficiale è disponibile nella lingua originale. La versione italiana verrà pubblicata al termine dei controlli automatici.

Testo acquisito dalla fonte

It was discovered that ClamAV incorrectly handled certain zip archive files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2026-20337, CVE-2026-20338) It was discovered that ClamAV incorrectly handled certain PESpin files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2026-20339) It was discovered that ClamAV incorrectly handled certain GPT files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2026-20345) It was discovered that ClamAV incorrectly handled certain PDF files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2026-20346) It was discovered that ClamAV incorrectly handled certain Mach-O files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2026-20347) It was discovered that ClamAV incorrectly handled certain XAR files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2026-20348)

Fonte
Ubuntu Security Notices
Entità pubblicatrice
Ubuntu Security
Tipo entità
vendor security
Area
Global
Lingua originale
en · traduzione in preparazione
Pubblicazione
21/09/2026 14:05
MITRE ATT&CK
T1562
CVE
CVE-2026-20337, CVE-2026-20338, CVE-2026-20339, CVE-2026-20345, CVE-2026-20346, CVE-2026-20347, CVE-2026-20348
Perimetro tecnico

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