1. Home
  2. CVE Database
  3. CVE-2021-34550
HIGH · 7.5

CVE-2021-34550

An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descripto...

Vulnerability Description

An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descriptor

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
TorprojectTor< 0.3.5.15

Related Weaknesses (CWE)

CWE-119

References

FAQ

What is CVE-2021-34550?

CVE-2021-34550 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descripto...

How severe is CVE-2021-34550?

CVE-2021-34550 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-2021-34550?

Check the references section above for vendor advisories and patch information. Affected products include: Torproject Tor.