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Ubuntu.comUB:CVE-2020-15572

HistoryJul 15, 2020 - 12:00 a.m.

CVE-2020-15572

2020-07-1500:00:00

ubuntu.com

CVSS2

4.3

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

CVSS3

7.5

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

EPSS

0.003

Percentile

70.6%

JSON

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.

References

blog.torproject.org/new-release-tor-03511-0428-0436-security-fixes

launchpad.net/bugs/cve/CVE-2020-15572

nvd.nist.gov/vuln/detail/CVE-2020-15572

security-tracker.debian.org/tracker/CVE-2020-15572

www.cve.org/CVERecord?id=CVE-2020-15572

CVSS2

4.3

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

CVSS3

7.5

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

EPSS

0.003

Percentile

70.6%

JSON

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