LibEtPan mailimap_types.c mailimap_mailbox_data_status_free null pointer dereference

HistoryDiffrelatejsonxmlCTI

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4.8	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in LibEtPan. This issue affects the function mailimap_mailbox_data_status_free of the file low-level/imap/mailimap_types.c. This manipulation causes null pointer dereference. This vulnerability is tracked as CVE-2022-4121. The attack is possible to be carried out remotely. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability has been found in LibEtPan (version now known) and classified as problematic. Affected by this vulnerability is the function mailimap_mailbox_data_status_free of the file low-level/imap/mailimap_types.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In libetpan a null pointer dereference in mailimap_mailbox_data_status_free in low-level/imap/mailimap_types.c was found that could lead to a remote denial of service or other potential consequences.

The weakness was disclosed 01/17/2023 as 420. The advisory is shared at github.com. This vulnerability is known as CVE-2022-4121 since 11/22/2022. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 211260 (Fedora 37 : libetpan (2022-f092bc8f7b)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 5c9eb6b6ba64c4eb927d7a902317410181aacbba is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (211260). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

LibEtPan

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 211260
Nessus Name: Fedora 37 : libetpan (2022-f092bc8f7b)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 5c9eb6b6ba64c4eb927d7a902317410181aacbba

Timelineinfo

11/22/2022 🔍
01/17/2023 +56 days 🔍
01/17/2023 +0 days 🔍
04/05/2025 +808 days 🔍

Sourcesinfo

Advisory: 420
Status: Confirmed

CVE: CVE-2022-4121 (🔍)
GCVE (CVE): GCVE-0-2022-4121
GCVE (VulDB): GCVE-100-218497

Entryinfo

Created: 01/17/2023 20:37
Updated: 04/05/2025 01:22
Changes: 01/17/2023 20:37 (41), 02/09/2023 14:07 (11), 11/16/2024 13:05 (17), 04/05/2025 01:22 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.