Vulnerabilities (CVE)

Filtered by vendor Torproject Subscribe
Filtered by product Tor
Total 35 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-34549 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-005. Hashing is mishandled for certain retrieval of circuit data. Consequently. an attacker can trigger the use of an attacker-chosen circuit ID to cause algorithm inefficiency.
CVE-2021-34548 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-003. An attacker can forge RELAY_END or RELAY_RESOLVED to bypass the intended access control for ending a stream.
CVE-2021-28090 2 Fedoraproject, Torproject 2 Fedora, Tor 2024-11-21 5.0 MEDIUM 5.3 MEDIUM
Tor before 0.4.5.7 allows a remote attacker to cause Tor directory authorities to exit with an assertion failure, aka TROVE-2021-002.
CVE-2021-28089 2 Fedoraproject, Torproject 2 Fedora, Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001.
CVE-2020-8516 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 5.3 MEDIUM
The daemon in Tor through 0.4.1.8 and 0.4.2.x through 0.4.2.6 does not verify that a rendezvous node is known before attempting to connect to it, which might make it easier for remote attackers to discover circuit information. NOTE: The network team of Tor claims this is an intended behavior and not a vulnerability
CVE-2020-15572 1 Torproject 1 Tor 2024-11-21 4.3 MEDIUM 7.5 HIGH
Tor before 0.4.3.6 has an out-of-bounds memory access that allows a remote denial-of-service (crash) attack against Tor instances built to use Mozilla Network Security Services (NSS), aka TROVE-2020-001.
CVE-2020-10593 2 Opensuse, Torproject 3 Backports Sle, Leap, Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (memory leak), aka TROVE-2020-004. This occurs in circpad_setup_machine_on_circ because a circuit-padding machine can be negotiated twice on the same circuit.
CVE-2020-10592 2 Opensuse, Torproject 3 Backports, Leap, Tor 2024-11-21 7.8 HIGH 7.5 HIGH
Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (CPU consumption), aka TROVE-2020-002.
CVE-2019-8955 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler.
CVE-2018-0491 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list.
CVE-2018-0490 2 Debian, Torproject 2 Debian Linux, Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.
CVE-2015-2929 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
The Hidden Service (HS) client implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote servers to cause a denial of service (assertion failure and application exit) via a malformed HS descriptor.
CVE-2015-2928 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.
CVE-2015-2689 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.
CVE-2015-2688 1 Torproject 1 Tor 2024-11-21 5.0 MEDIUM 7.5 HIGH
buf_pullup in Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle unexpected arrival times of buffers with invalid layouts, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.