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CVE-2022-2097

MEDIUMCVSS 5.3/10EPSS 2.02%

Last modified

CVE-2022-2097 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. EPSS estimates a 2.02% chance of exploitation in the next 30 days.

Description

AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. In the special case of "in place" encryption, sixteen bytes of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, they are both unaffected. Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4). Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p).

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability
2.02%

78.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpensslOpenssl>= 1.1.1, < 1.1.1q
OpensslOpenssl>= 3.0.0, < 3.0.5
FedoraprojectFedora35
FedoraprojectFedora36
NetappActive Iq Unified ManagerAll versions
NetappClustered Data Ontap Antivirus ConnectorAll versions
NetappH300s FirmwareAll versions
NetappH500s FirmwareAll versions
NetappH700s FirmwareAll versions
NetappH410s FirmwareAll versions
NetappH410c FirmwareAll versions
SiemensSinec Ins< 1.0
SiemensSinec Ins1.0
DebianDebian Linux10.0
DebianDebian Linux11.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-2097?
AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. In the special case of "in place" encryption, sixteen bytes of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, they are both unaffected. Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4). Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p).
How severe is CVE-2022-2097?
CVE-2022-2097 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.02% probability of exploitation in the next 30 days.
How do I fix CVE-2022-2097?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-2097?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST