Is CVE-2022-2097 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 5%.

What products does CVE-2022-2097 affect?

Tracked products affected include OpenSSL, Debian, Fedora. Check the version you run to see whether it is affected.

How do I fix CVE-2022-2097?

Apply the vendor fix in your normal patch cycle. Upgrade affected products to a fixed version.

CVE-2022-2097

Q: What is CVE-2022-2097?

CVE-2022-2097 is a medium-severity software vulnerability (CWE-327) with a CVSS score of 5.3. 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 was

MEDIUM severity · CVSS 5.3 · CWE-327

5.3CVSS MEDIUM

Summary

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).

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactLow

Integrity impactNone

Availability impactNone

Exploit probability (EPSS)5%

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

Affected products we track (3)

OpenSSL Debian Fedora

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

CVE-2022-2097

Summary

Impact & exploitability

Affected products we track (3)

Recommendation

Additional information