What is the CVSS score of CVE-2020-16118?

CVE-2020-16118 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 2.1%.

Is there a public PoC exploit available for CVE-2020-16118?

Yes, a public proof-of-concept exploit is available for CVE-2020-16118. Prioritise patching immediately. EPSS: 2.1%.

Is there a patch available for CVE-2020-16118?

Yes, a patch is available for CVE-2020-16118. Update the affected software to the latest version immediately.

Balsa CVE-2020-16118

HIGH

NULL Pointer Dereference (CWE-476)

2020-07-29 cve@mitre.org

Null Pointer Dereference Denial Of Service Balsa Backports Sle Leap

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Jul 29, 2020 - 18:15 nvd

HIGH 7.5

DescriptionNVD

AnalysisAI

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. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. 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 include: Gnome Balsa, Opensuse Backports Sle, Opensuse Leap. Version information: before 2.6.0.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.