Vulnerability Description
The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote attacker to cause a denial of service.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bittorrent | Utorrent | <= 3.5.5 |
Related Weaknesses (CWE)
References
- https://blog.whtaguy.com/2020/09/utorrent-cve-2020-8437-vulnerability.htmlExploitThird Party Advisory
- https://forum.utorrent.com/forum/13-announcements/Vendor Advisory
- https://twitter.com/va_startThird Party Advisory
- https://utclient.utorrent.com/offers/beta_release_notes/release_notes.htmlRelease NotesVendor Advisory
- https://blog.whtaguy.com/2020/09/utorrent-cve-2020-8437-vulnerability.htmlExploitThird Party Advisory
- https://forum.utorrent.com/forum/13-announcements/Vendor Advisory
- https://twitter.com/va_startThird Party Advisory
- https://utclient.utorrent.com/offers/beta_release_notes/release_notes.htmlRelease NotesVendor Advisory
FAQ
What is CVE-2020-8437?
CVE-2020-8437 is a vulnerability with a CVSS score of 7.5 (HIGH). The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote attacker to cause a denial of service.
How severe is CVE-2020-8437?
CVE-2020-8437 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-8437?
Check the references section above for vendor advisories and patch information. Affected products include: Bittorrent Utorrent.