What is CVE-2020-35766?

CVE-2020-35766 is a high-severity vulnerability in Opendkim, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2020-12-28.

How severe is CVE-2020-35766?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Opendkim

CVE-2020-35766

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.

EPSS: 0.005 (40.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Opendkim
N/a — versions n/a

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-35766?: CVE-2020-35766 is a high-severity vulnerability in Opendkim, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2020-12-28.
How severe is CVE-2020-35766?: High severity. CVSS v3 base score is 7.8 out of 10.