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GoogleOSV:CVE-2016-20021

HistoryJan 12, 2024 - 3:15 a.m.

CVE-2016-20021

2024-01-1203:15:08

Google

osv.dev

gentoo

portage

pgp

validation

cve-2016-20021

signature

verification

emerge-webrsync

software

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.5

Confidence

High

EPSS

0.001

Percentile

27.3%

JSON

In Gentoo Portage before 3.0.47, there is missing PGP validation of executed code: the standalone emerge-webrsync downloads a .gpgsig file but does not perform signature verification. Unless emerge-webrsync is used, Portage is not vulnerable.

References

bugs.gentoo.org/597800

gitweb.gentoo.org/proj/portage.git/tree/NEWS

wiki.gentoo.org/wiki/Portage

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.5

Confidence

High

EPSS

0.001

Percentile

27.3%

JSON

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