The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to "underflow errors."
Metrics
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
The EPSS score is 0.01382.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
---|---|
Tor |
|
Configuration 1 [-]
|
No data.
No data.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-06T21:51:09.175Z
Reserved: 2011-01-18T00:00:00
Link: CVE-2011-0491

No data.

Status : Deferred
Published: 2011-01-19T12:00:20.047
Modified: 2025-04-11T00:51:21.963
Link: CVE-2011-0491

No data.

No data.