strongSwan up to 5.9.3 In-memory Certificate Cache integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in strongSwan up to 5.9.3. Impacted is an unknown function of the component In-memory Certificate Cache Handler. Such manipulation leads to integer overflow. This vulnerability is traded as CVE-2021-41991. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in strongSwan up to 5.9.3 (Network Encryption Software). Affected by this issue is an unknown code block of the component In-memory Certificate Cache Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability.

The weakness was shared 10/18/2021. The advisory is available at strongswan.org. This vulnerability is handled as CVE-2021-41991 since 10/04/2021. The technical details are unknown and an exploit is not available.

Upgrading to version 5.9.4 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Integer overflow
CWE: CWE-190 / CWE-189
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: strongSwan 5.9.4

Timelineinfo

10/04/2021 🔍
10/18/2021 +14 days 🔍
10/18/2021 +0 days 🔍
10/22/2021 +4 days 🔍

Sourcesinfo

Advisory: dsa-4989
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41991 (🔍)
GCVE (CVE): GCVE-0-2021-41991
GCVE (VulDB): GCVE-100-184574

Entryinfo

Created: 10/18/2021 21:41
Updated: 10/22/2021 17:22
Changes: 10/18/2021 21:41 (40), 10/22/2021 17:15 (3), 10/22/2021 17:22 (1)
Complete: 🔍
Cache ID: 216::103

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