CVE-2020-16121
PackageKit error messages leak presence and mimetype of files to unprivileged users
LOW
3.3
CVSS Score
Published: November 7, 2020 at 04:10 AM UTC
Updated: June 17, 2026 at 02:57 AM UTC
3 products affected across 3 vendorsUbuntu LinuxPackagekitPackageKit
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Severity
LOW3.3
Exploit prediction
EPSS 0.5%
Description
PackageKit provided detailed error messages to unprivileged callers that exposed information about file presence and mimetype of files that the user would be unable to determine on its own.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%All versions
0.8.17-4ubuntu6 ≤ v < 0.8.17-4ubuntu6~gcc5.4ubuntu1.51.1.13-2ubuntu ≤ v < 1.1.13-2ubuntu1.11.1.9-1ubuntu2 ≤ v < 1.1.9-1ubuntu2.18.04.60.8.17-4ubuntu61.1.13-2ubuntu1.1.9-1ubuntu2
Affected range stops below 0.8.17-4ubuntu6~gcc5.4ubuntu1.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.1.13-2ubuntu1.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.1.9-1ubuntu2.18.04.6, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugs.launchpad.net/ubuntu/+source/packagekit/+bug/1888887x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.htmlCVSS
3.3LOWcanonical
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-209
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