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ubuntucveUbuntu.comUB:CVE-2020-15572
HistoryJul 15, 2020 - 12:00 a.m.

CVE-2020-15572

2020-07-1500:00:00
ubuntu.com
ubuntu.com
8

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.003 Low

EPSS

Percentile

70.6%

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.

Notes

Author Note
alexmurray tor in Ubuntu is not compiled with NSS support (instead we use OpenSSL) and so the tor package in Ubuntu is not affected by this vulnerability.

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.003 Low

EPSS

Percentile

70.6%