CVE-2020-16117: Null Pointer Dereference
First published: Wed Jul 29 2020(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNOME evolution-data-server | <3.35.91 | |
| Debian Debian Linux | =9.0 |
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Reference Links
- https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/2cc39592b532cf0dc994fd3694b8e6bf924c9ab5
- https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/627c3cdbfd077e59aa288c85ff8272950577f1d7
- https://gitlab.gnome.org/GNOME/evolution-data-server/-/issues/189
- https://lists.debian.org/debian-lts-announce/2020/08/msg00005.html
Frequently Asked Questions
What is CVE-2020-16117?
CVE-2020-16117 is a vulnerability in GNOME evolution-data-server before version 3.35.91 that allows a malicious server to crash the mail client with a NULL pointer dereference.
How does CVE-2020-16117 affect GNOME evolution-data-server?
CVE-2020-16117 affects GNOME evolution-data-server versions before 3.35.91.
How can a malicious server exploit CVE-2020-16117?
A malicious server can exploit CVE-2020-16117 by sending an invalid CAPABILITY line on a connection attempt.
What is the severity of CVE-2020-16117?
CVE-2020-16117 has a severity rating of medium, with a CVSS score of 5.9.
Are there any fixes available for CVE-2020-16117?
Yes, the vulnerability has been fixed in GNOME evolution-data-server version 3.35.91.
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