LibreSSL up to 3.4.0 x509_constraints.c x509_constraints_parse_mailbox stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in LibreSSL up to 3.4.0. Affected is the function x509_constraints_parse_mailbox in the library lib/libcrypto/x509/x509_constraints.c. This manipulation causes stack-based overflow. This vulnerability is registered as CVE-2021-41581. No exploit is available.

Detailsinfo

A vulnerability has been found in LibreSSL up to 3.4.0 and classified as critical. Affected by this vulnerability is the function x509_constraints_parse_mailbox in the library lib/libcrypto/x509/x509_constraints.c. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 09/24/2021 as 126. The advisory is shared at github.com. This vulnerability is known as CVE-2021-41581 since 09/24/2021. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/24/2021 🔍
09/24/2021 +0 days 🔍
09/24/2021 +0 days 🔍
10/02/2021 +8 days 🔍

Sourcesinfo

Advisory: 126
Status: Confirmed

CVE: CVE-2021-41581 (🔍)
GCVE (CVE): GCVE-0-2021-41581
GCVE (VulDB): GCVE-100-183325

Entryinfo

Created: 09/24/2021 07:50
Updated: 10/02/2021 09:24
Changes: 09/24/2021 07:50 (38), 10/02/2021 09:17 (1), 10/02/2021 09:19 (16), 10/02/2021 09:24 (1)
Complete: 🔍
Cache ID: 216::103

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