Linux Kernel up to 5.14.15 Inter-Process Communication net/tipc/crypto.c tipc_crypto_key_rcv missing encryption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.9 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in Linux Kernel up to 5.14.15 (Operating System). This affects the function tipc_crypto_key_rcv
of the file net/tipc/crypto.c of the component Inter-Process Communication. The manipulation with an unknown input leads to a missing encryption vulnerability. CWE is classifying the issue as CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. This is going to have an impact on confidentiality.
The weakness was presented 11/03/2021 as fa40d9734a57bcbfa79a280189799f76c88f7bb0. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-43267 since 11/02/2021. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600 for this issue.
Upgrading to version 5.14.16 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying the patch fa40d9734a57bcbfa79a280189799f76c88f7bb0 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Product
Type
Vendor
Name
Version
- 5.14.0
- 5.14.1
- 5.14.2
- 5.14.3
- 5.14.4
- 5.14.5
- 5.14.6
- 5.14.7
- 5.14.8
- 5.14.9
- 5.14.10
- 5.14.11
- 5.14.12
- 5.14.13
- 5.14.14
- 5.14.15
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.0VulDB Meta Temp Score: 6.9
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Missing encryptionCWE: CWE-311 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Kernel 5.14.16
Patch: fa40d9734a57bcbfa79a280189799f76c88f7bb0
Timeline
11/02/2021 🔍11/03/2021 🔍
11/03/2021 🔍
11/06/2021 🔍
Sources
Vendor: kernel.orgAdvisory: fa40d9734a57bcbfa79a280189799f76c88f7bb0
Status: Confirmed
CVE: CVE-2021-43267 (🔍)
Entry
Created: 11/03/2021 07:18Updated: 11/06/2021 08:59
Changes: 11/03/2021 07:18 (47), 11/06/2021 08:57 (1), 11/06/2021 08:59 (18)
Complete: 🔍
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