CVE-2012-5573
EPSS 1.0%
Description
The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command.
How to fix CVE-2012-5573
To remediate CVE-2012-5573, upgrade the affected package to a fixed version below.
- Debian/tor—upgrade to 0.2.3.25-1 or later
Is CVE-2012-5573 being exploited?
Low — EPSS is 1.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.2.3.25-1