CVE-2020-10593

published 2020-03-23

CVE-2020-10593: 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…

Priority P3 35 high 7.5 CVSS 3.1

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

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.

Affected

10 ranges

Vendor	Product	Version range	Fixed in
debian	tor	< tor 0.4.2.7-1 (bookworm)	tor 0.4.2.7-1 (bookworm)
opensuse	backports_sle	—	—
opensuse	leap	—	—
torproject	tor	< 0.4.1.9	0.4.1.9
torproject	tor	<= 0.4.2.7	—
torproject	tor	>= 0 < 0.4.2.7-1	0.4.2.7-1
torproject	tor	>= 0 < 0.4.2.7-1	0.4.2.7-1
torproject	tor	>= 0 < 0.4.2.7-1	0.4.2.7-1
torproject	tor	>= 0 < 0.4.2.7-1	0.4.2.7-1
torproject	tor	>= 0.3.5 < 0.3.5.10	0.3.5.10

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P

osv 7.5 HIGH

vendor_debian 7.5 HIGH

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