Netalk ad_open.c ad_header_read/ad_header_read_osx buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Netalk. Affected is the function ad_header_read/ad_header_read_osx of the file libatalk/adouble/ad_open.c. The manipulation results in buffer overflow. This vulnerability is identified as CVE-2022-23121. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Netalk (affected version unknown). Affected is the function ad_header_read/ad_header_read_osx of the file libatalk/adouble/ad_open.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parse_entries function. The issue results from the lack of proper error handling when parsing AppleDouble entries. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15819.

The weakness was released 12/20/2022 as 62d4013c62be3b1b4a14f37057cb1c8f393c5fd1. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2022-23121 since 01/11/2022. There are known technical details, but no exploit is available.

Applying the patch 62d4013c62be3b1b4a14f37057cb1c8f393c5fd1 is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 62d4013c62be3b1b4a14f37057cb1c8f393c5fd1

Timelineinfo

01/11/2022 🔍
12/20/2022 +343 days 🔍
12/20/2022 +0 days 🔍
11/06/2025 +1051 days 🔍

Sourcesinfo

Advisory: 62d4013c62be3b1b4a14f37057cb1c8f393c5fd1
Status: Confirmed

CVE: CVE-2022-23121 (🔍)
GCVE (CVE): GCVE-0-2022-23121
GCVE (VulDB): GCVE-100-216336

Entryinfo

Created: 12/20/2022 07:33
Updated: 11/06/2025 00:19
Changes: 12/20/2022 07:33 (40), 11/06/2025 00:19 (36)
Complete: 🔍
Cache ID: 216::103

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