CVE-2016-20021
Last modified
CVE-2016-20021 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gentoo | Portage | < 3.0.47 |
References
- https://bugs.gentoo.org/597800Issue Tracking, Patch
- https://gitweb.gentoo.org/proj/portage.git/tree/NEWSRelease Notes
- https://bugs.gentoo.org/597800Issue Tracking, Patch
- https://gitweb.gentoo.org/proj/portage.git/tree/NEWSRelease Notes
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-20021?
How severe is CVE-2016-20021?
How do I fix CVE-2016-20021?
How Strix Helps
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2016
- CVE-2016-20014In pam_tacplus.c in pam_tacplus before 1.4.1, pam_sm_acct_mg…9.8
- CVE-2016-20015In the ebuild package through smokeping-2.7.3-r1 for SmokePi…7.5
- CVE-2016-20016MVPower CCTV DVR models, including TV-7104HE 1.8.4 115215B9 …9.8
- CVE-2016-20017D-Link DSL-2750B devices before 1.05 allow remote unauthenti…9.8
- CVE-2016-20018Knex Knex.js through 2.3.0 has a limited SQL injection vulne…7.5
- CVE-2016-2002The validateAdminConfig handler in the Analytics Management …
- CVE-2016-20022In the Linux kernel before 4.8, usb_parse_endpoint in driver…8.4
- CVE-2016-20023In CKSource CKFinder before 2.5.0.1 for ASP.NET, authenticat…6.5
- CVE-2016-20024ZKTeco ZKTime.Net 3.0.1.6 contains an insecure file permissi…9.8
- CVE-2016-20025ZKTeco ZKAccess Professional 3.5.3 contains an insecure file…8.8
- CVE-2016-20026ZKTeco ZKBioSecurity 3.0 contains hardcoded credentials in t…9.8
- CVE-2016-20027ZKTeco ZKBioSecurity 3.0 contains multiple reflected cross-s…6.1
Are you affected by CVE-2016-20021?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST