OpenBSD up to 7.3 npppd buffer size

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenBSD up to 7.3 and classified as problematic. This vulnerability affects unknown code of the component npppd. Such manipulation leads to buffer size. This vulnerability is traded as CVE-2023-52557. The attack may be launched remotely. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in OpenBSD up to 7.3 (Operating System) and classified as problematic. Affected by this issue is an unknown code of the component npppd. The manipulation with an unknown input leads to a buffer size vulnerability. Using CWE to declare the problem leads to CWE-131. The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow. Impacted is availability. CVE summarizes:

In OpenBSD 7.3 before errata 016, npppd(8) could crash by a l2tp message which has an AVP (Attribute-Value Pair) with wrong length.

The weakness was shared 03/01/2024. The advisory is available at ftp.openbsd.org. This vulnerability is handled as CVE-2023-52557. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/10/2025).

Applying the patch 7.3 Errata 016 is able to eliminate this problem.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer size
CWE: CWE-131 / 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: 7.3 Errata 016

Timelineinfo

03/01/2024 🔍
03/01/2024 +0 days 🔍
03/01/2024 +0 days 🔍
10/10/2025 +588 days 🔍

Sourcesinfo

Advisory: abf3a29384c582c807a621e7fc6e7c68d0cafe9b
Status: Confirmed

CVE: CVE-2023-52557 (🔍)
GCVE (CVE): GCVE-0-2023-52557
GCVE (VulDB): GCVE-100-255434

Entryinfo

Created: 03/01/2024 17:46
Updated: 10/10/2025 19:55
Changes: 03/01/2024 17:46 (38), 04/04/2024 02:28 (17), 10/10/2025 19:55 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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