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CVE-2020-16117

MEDIUMCVSS 5.9/10EPSS 2.21%

Last modified

CVE-2020-16117 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. In GNOME evolution-data-server before 3.35.91, a malicious server can crash the mail client with a NULL pointer dereference by sending an invalid (e.g., minimal) CAPABILITY line on a connection attempt. This is related to imapx_free_capability and imapx_connect_to_server.. EPSS estimates a 2.21% chance of exploitation in the next 30 days.

Description

In GNOME evolution-data-server before 3.35.91, a malicious server can crash the mail client with a NULL pointer dereference by sending an invalid (e.g., minimal) CAPABILITY line on a connection attempt. This is related to imapx_free_capability and imapx_connect_to_server.

Metrics

CVSS 3.1
5.9/10

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

EPSS Probability
2.21%

80.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GnomeEvolution-Data-Server< 3.35.91
DebianDebian Linux9.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-16117?
In GNOME evolution-data-server before 3.35.91, a malicious server can crash the mail client with a NULL pointer dereference by sending an invalid (e.g., minimal) CAPABILITY line on a connection attempt. This is related to imapx_free_capability and imapx_connect_to_server.
How severe is CVE-2020-16117?
CVE-2020-16117 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 2.21% probability of exploitation in the next 30 days.
How do I fix CVE-2020-16117?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST