PT-2020-20137 · Bittorrent · Utorrent

Published 2020-03-02 · Updated 2022-05-03 · CVE-2020-8437

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions uTorrent versions 3.5.5 and earlier

Description The issue is related to the bencoding parser in uTorrent, which misparses nested bencoded dictionaries. This allows a remote attacker to cause a denial of service. There is no information provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations For versions 3.5.5 and earlier, update to a version later than 3.5.5 to resolve the issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2020-8437

Affected Products

Utorrent

References · 14

• 🔥 https://github.com/guywhataguy/uTorrent-CVE-2020-8437 · Exploit
• 🔥 https://github.com/mavlevin/uTorrent-CVE-2020-8437 · Exploit
• 🔥 https://blog.whtaguy.com/2020/09/utorrent-cve-2020-8437-vulnerability.html · Exploit
• https://utclient.utorrent.com/offers/beta_release_notes/release_notes.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8437 · Security Note
• https://osv.dev/vulnerability/CVE-2020-8437 · Vendor Advisory
• https://forum.utorrent.com/forum/13-announcements · Vendor Advisory
• https://twitter.com/va_start · Note
• https://t.me/ckure/5611 · Telegram Post
• https://t.me/defcon_news/57734 · Telegram Post
• https://t.me/cybersecuritytechnologies/1799 · Telegram Post
• https://t.me/true_secator/967 · Telegram Post
• https://t.me/rnetsec/13406 · Telegram Post
• https://t.me/cvenotify/29622 · Telegram Post