CVE-2022-2097 AES OCB fails to encrypt some bytes
A flaw in AES OCB mode on 32-bit x86 platforms may reveal up to sixteen bytes of preexisting memory or plaintext during encryption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-2097?
CVE-2022-2097 is a medium-severity vulnerability in Debian Debian Linux, published on 5 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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).
Weakness: CWE-327
Which versions are affected by CVE-2022-2097?
5 open source packages ship an affected version, including openssl-src. It affects 11 products.
| Package | Affected | Fixed in |
|---|---|---|
openssl-src crates.io | All versions | 111.22.0 |
openssl-src crates.io | All versions | 111.22.0 |
openssl-src crates.io | From 0.0.0-0 | 111.22.0, 300.0.9 |
openssl-src crates.io | From 300.0.0 | 300.0.9 |
openssl-src crates.io | From 300.0.0 | 300.0.9 |
Linux distribution packages (28)
openssl-1_1 SUSE:Enterprise Storage 6 | All versions | 1.1.0i-150100.14.36.1 |
openssl-1_1 SUSE:Enterprise Storage 7 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | All versions | 1.1.0i-150100.14.36.1 |
openssl-1_1 SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | All versions | 1.1.0i-150100.14.36.1 |
openssl-1_1 SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise Micro 5.1 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise Micro 5.2 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 1.1.1d-2.69.1 |
openssl-1_1 SUSE:Linux Enterprise Server 12 SP5 | All versions | 1.1.1d-2.69.1 |
openssl-1_1 SUSE:Linux Enterprise Server 15 SP1-BCL | All versions | 1.1.0i-150100.14.36.1 |
openssl-1_1 SUSE:Linux Enterprise Server 15 SP1-LTSS | All versions | 1.1.0i-150100.14.36.1 |
openssl-1_1 SUSE:Linux Enterprise Server 15 SP2-BCL | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise Server 15 SP2-LTSS | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 1.1.1d-2.69.1 |
openssl-1_1 SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 1.1.1d-2.69.1 |
openssl-1_1 SUSE:Linux Enterprise Server for SAP Applications 15 SP1 | All versions | 1.1.0i-150100.14.36.1 |
openssl-1_1 SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 1.1.1d-2.69.1 |
openssl-1_1 SUSE:Manager Proxy 4.1 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Manager Retail Branch Server 4.1 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:Manager Server 4.1 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 SUSE:OpenStack Cloud 9 | All versions | 1.1.1d-2.69.1 |
openssl-1_1 SUSE:OpenStack Cloud Crowbar 9 | All versions | 1.1.1d-2.69.1 |
openssl-1_1 openSUSE:Leap 15.3 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 openSUSE:Leap Micro 5.2 | All versions | 1.1.1d-150200.11.51.1 |
openssl-1_1 openSUSE:Tumbleweed | All versions | 1.1.1q-1.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Netapp Active Iq Unified Manager, Netapp Clustered Data Ontap Antivirus Connector, Netapp H300s Firmware, Netapp H410c Firmware and 5 more.
How do I fix CVE-2022-2097?
Upgrade openssl-src to a fixed version for your release line: 111.22.0 or 300.0.9.
Is CVE-2022-2097 being exploited?
There is no known exploitation of CVE-2022-2097 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2022-2097, AZL-10109, AZL-41814, CLEANSTART-2026-VX91927, CLSA-2022-1660238832, CLSA-2022-1660238929 and 13 more.