CVE-2020-35766
First published: Mon Dec 28 2020(Updated: )
The test suite in libopendkim in OpenDKIM through 2.10.3 allows local users to gain privileges via a symlink attack against the /tmp/testkeys file (related to t-testdata.h, t-setup.c, and t-cleanup.c). NOTE: this is applicable to persons who choose to engage in the "A number of self-test programs are included here for unit-testing the library" situation.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenDaylight | <=2.10.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-35766?
CVE-2020-35766 has a medium severity rating due to the potential privilege escalation via a symlink attack.
How do I fix CVE-2020-35766?
To fix CVE-2020-35766, upgrade to the latest version of OpenDKIM that addresses the vulnerability.
Who is affected by CVE-2020-35766?
CVE-2020-35766 affects local users of OpenDKIM versions up to 2.10.3 who can execute the test suite.
What is a symlink attack in the context of CVE-2020-35766?
A symlink attack occurs when an attacker creates a symbolic link that redirects to a sensitive file, allowing unauthorized access or privilege escalation.
Are there any workarounds for CVE-2020-35766?
As a temporary measure, restrict access to the /tmp/testkeys file to prevent unauthorized symlink creation in OpenDKIM.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/last-modified-date
- agent/references
- agent/author
- agent/remedy
- agent/severity
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/opendkim
- canonical/opendaylight
- version/opendaylight/2.10.3