What’s Vulnerable › Vulnerabilities

CVE-2020-16118

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-07-29 · updated 2026-06-17
• Weakness: CWE-476

Description

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.

Affected products

• GNOME Balsa: before 2.6.0 — fixed in 2.6.0
• openSUSE Backports Sle: 15.0-sp1
• openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: GNOME Balsa 2.6.0. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00035.html
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00045.html
• https://gitlab.gnome.org/GNOME/balsa/-/commit/4e245d758e1c826a01080d40c22ca8706f0339e5
• https://gitlab.gnome.org/GNOME/balsa/-/issues/23
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00035.html
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00045.html
• https://gitlab.gnome.org/GNOME/balsa/-/commit/4e245d758e1c826a01080d40c22ca8706f0339e5
• https://gitlab.gnome.org/GNOME/balsa/-/issues/23

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