CVE-2023-5363
CVE Details
Visit the official vulnerability details page for CVE-2023-5363 to learn more.
Initial Publication
10/25/2024
Last Update
12/16/2024
Third Party Dependency
openssl
NIST CVE Summary
Issue summary: A bug has been identified in the processing of key and initialisation vector (IV) lengths. This can lead to potential truncation or overruns during the initialisation of some symmetric ciphers.
Impact summary: A truncation in the IV can result in non-uniqueness, which could result in loss of confidentiality for some cipher modes.
When calling EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() or EVP_CipherInit_ex2() the provided OSSL_PARAM array is processed after the key and IV have been established. Any alterations to the key length, via the "keylen" parameter or the IV length, via the "ivlen" parameter, within the OSSL_PARAM array will not take effect as intended, potentially causing truncation or overreading of these values. The following ciphers and cipher modes are impacted: RC2, RC4, RC5, CCM, GCM and OCB.
For the CCM, GCM and OCB cipher modes, truncation of the IV can result in loss of confidentiality. For example, when following NIST's SP 800-38D section 8.2.1 guidance for constructing a deterministic IV for AES in GCM mode, truncation of the counter portion could lead to IV reuse.
Both truncations and overruns of the key and overruns of the IV will produce incorrect results and could, in some cases, trigger a memory exception. However, these issues are not currently assessed as security critical.
Changing the key and/or IV lengths is not considered to be a common operation and the vulnerable API was recently introduced. Furthermore it is likely that application developers will have spotted this problem during testing since decryption would fail unless both peers in the communication were similarly vulnerable. For these reasons we expect the probability of an application being vulnerable to this to be quite low. However if an application is vulnerable then this issue is considered very serious. For these reasons we have assessed this issue as Moderate severity overall.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this because the issue lies outside of the FIPS provider boundary.
OpenSSL 3.1 and 3.0 are vulnerable to this issue.
CVE Severity
Our Official Summary
This issue can lead to potential truncation or overruns during the initialization of some symmetric ciphers which can in some cases, trigger a memory exception. The images where this vulnerability is have controls in place are not accessible outside the cluster. So the attacker needs to gain privileged access to the cluster to attempt this exploit. Also the containers do not allow execution of arbitrary code. Impact of this exploit is also low, since container reduces the attack surface.
Status
Ongoing
Affected Products & Versions
| Version | Palette Enterprise | Palette Enterprise Airgap | VerteX | VerteX Airgap |
|---|---|---|---|---|
| 4.5.15 | ⚠️ Impacted | ✅ No Impact | ⚠️ Impacted | ✅ No Impact |
| 4.5.11 | ⚠️ Impacted | ✅ No Impact | ⚠️ Impacted | ✅ No Impact |
| 4.5.10 | ⚠️ Impacted | ✅ No Impact | ⚠️ Impacted | ✅ No Impact |
| 4.5.8 | ⚠️ Impacted | ✅ No Impact | ⚠️ Impacted | ✅ No Impact |
| 4.5.5 | ⚠️ Impacted | ✅ No Impact | ⚠️ Impacted | ✅ No Impact |
| 4.5.4 | ⚠️ Impacted | ✅ No Impact | ⚠️ Impacted | ✅ No Impact |
| 4.4.20 | ⚠️ Impacted | ✅ No Impact | ⚠️ Impacted | ✅ No Impact |
Revision History
| Date | Revision |
|---|---|
| 12/16/2024 | Impacted versions changed from 4.5.4, 4.5.5, 4.5.8, 4.4.20, 4.5.10, 4.5.11 to 4.5.4, 4.5.5, 4.5.8, 4.4.20, 4.5.10, 4.5.11, 4.5.15 |
| 12/12/2024 | Official summary revised: This issue can lead to potential truncation or overruns during the initialization of some symmetric ciphers which can in some cases, trigger a memory exception. The images where this vulnerability is have controls in place are not accessible outside the cluster. So the attacker needs to gain privileged access to the cluster to attempt this exploit. Also the containers do not allow execution of arbitrary code. Impact of this exploit is also low, since container reduces the attack surface. |
| 11/15/2024 | Impacted versions changed from 4.5.4, 4.5.5, 4.5.8, 4.4.20, 4.5.10 to 4.5.4, 4.5.5, 4.5.8, 4.4.20, 4.5.10, 4.5.11 |
| 11/15/2024 | Impacted versions changed from 4.5.4, 4.5.5, 4.5.8, 4.4.20 to 4.5.4, 4.5.5, 4.5.8, 4.4.20, 4.5.10 |
| 11/13/2024 | Impacted versions changed from 4.5.4, 4.5.5, 4.5.8 to 4.5.4, 4.5.5, 4.5.8, 4.4.20 |
| 11/10/2024 | Impacted versions changed from 4.5.4, 4.5.5 to 4.5.4, 4.5.5, 4.5.8 |
| 10/27/2024 | Impacted versions changed from 4.5.4 to 4.5.4, 4.5.5 |