Medium severity · published Jul 29, 2020
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…
5.9
CVSS
2.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
EV
Evolution-data-server · Gnome
before 3.35.91 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-16117
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-16117
Patch
https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/2cc39592b532cf0dc994fd3694b8e6bf924c9ab5
Release Notes
https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/627c3cdbfd077e59aa288c85ff8272950577f1d7
Exploit
https://gitlab.gnome.org/GNOME/evolution-data-server/-/issues/189
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00005.html
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