CVE-2021-47793

Summary

Telegram Desktop 2.9.2 contains a denial of service vulnerability that allows attackers to crash the application by sending an oversized message payload. Attackers can generate a 9 million byte buffer and paste it into the messaging interface to trigger an application crash.

Affected Software

Weaknesses

• CWE-770: Allocation of Resources Without Limits or Throttling

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://www.exploit-db.com/exploits/50247

References

• https://www.exploit-db.com/exploits/50247
• https://telegram.org
• https://www.vulncheck.com/advisories/telegram-desktop-denial-of-service-poc

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