ovs up to 2.5.0 flow.c minimasks heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in ovs up to 2.5.0 and classified as critical. Affected is the function minimasks of the file flow.c. The manipulation leads to heap-based overflow. This vulnerability is documented as CVE-2022-32166. The attack can be initiated remotely. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in ovs up to 2.5.0. It has been rated as critical. This issue affects the function minimasks of the file flow.c. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c. An unsafe comparison of “minimasks” function could lead access to an unmapped region of memory. This vulnerability is capable of crashing the software, memory modification, and possible remote execution.

The weakness was released 09/28/2022. The advisory is shared at mend.io. The identification of this vulnerability is CVE-2022-32166 since 05/31/2022. Technical details are known, but no exploit is available.

Applying the patch 2ed6505555cdcb46f9b1f0329d1491b75290fc73 is able to eliminate this problem. The bugfix is ready for download at github.com.

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

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (Mend): 🔍

CVSSv2info

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

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / 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: 2ed6505555cdcb46f9b1f0329d1491b75290fc73

Timelineinfo

05/31/2022 🔍
09/28/2022 +120 days 🔍
09/28/2022 +0 days 🔍
05/22/2025 +967 days 🔍

Sourcesinfo

Advisory: 2ed6505555cdcb46f9b1f0329d1491b75290fc73
Status: Confirmed

CVE: CVE-2022-32166 (🔍)
GCVE (CVE): GCVE-0-2022-32166
GCVE (VulDB): GCVE-100-209681

Entryinfo

Created: 09/28/2022 15:00
Updated: 05/22/2025 03:44
Changes: 09/28/2022 15:00 (41), 10/24/2022 18:09 (1), 10/24/2022 18:17 (12), 05/22/2025 03:44 (15)
Complete: 🔍
Cache ID: 216::103

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

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