Vulnerability Details : CVE-2020-16118
Potential exploit
In GNOME Balsa before 2.6.0, a malicious server operator or man in the middle can trigger a NULL pointer dereference and client crash by sending a PREAUTH response to imap_mbox_connect in libbalsa/imap/imap-handle.c.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-16118
- cpe:2.3:a:gnome:balsa:*:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-16118
0.45%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 61 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-16118
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-16118
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-16118
-
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00035.html
[security-announce] openSUSE-SU-2020:1207-1: moderate: Security update fMailing List;Third Party Advisory
-
https://gitlab.gnome.org/GNOME/balsa/-/commit/4e245d758e1c826a01080d40c22ca8706f0339e5
imap-handle: Do not crash on PREAUTH greeting (4e245d75) · Commits · GNOME / balsa · GitLabPatch;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00045.html
[security-announce] openSUSE-SU-2020:1230-1: moderate: Security update fMailing List;Third Party Advisory
-
https://gitlab.gnome.org/GNOME/balsa/-/issues/23
crash due to null pointer access when imap server sends early preauth (#23) · Issues · GNOME / balsa · GitLabExploit;Third Party Advisory
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