CVE-2022-4304
Timing Oracle in RSA Decryption
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
A timing based side channel exists in the OpenSSL RSA Decryption implementation
which could be sufficient to recover a plaintext across a network in a
Bleichenbacher style attack. To achieve a successful decryption an attacker
would have to be able to send a very large number of trial messages for
decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5,
RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an
encrypted pre-master secret to the server. An attacker that had observed a
genuine connection between a client and a server could use this flaw to send
trial messages to the server and record the time taken to process them. After a
sufficiently large number of messages the attacker could recover the pre-master
secret used for the original connection and thus be able to decrypt the
application data sent over that connection.
A timing-based side channel exists in the OpenSSL RSA Decryption implementation, which could be sufficient to recover a ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption, an attacker would have to be able to send a very large number of trial messages for decryption. This issue affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP, and RSASVE.
A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.
Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release of Red Hat JBoss Core Services Apache HTTP Server 2.4.51 Service Pack 2 serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.51 Service Pack 1, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include bypass, denial of service, double free, out of bounds read, out of bounds write, and use-after-free vulnerabilities.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2022-12-06 CVE Reserved
- 2023-02-07 CVE Published
- 2023-04-24 First Exploit
- 2025-03-20 CVE Updated
- 2025-04-02 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-203: Observable Discrepancy
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://security.gentoo.org/glsa/202402-08 |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/Trinadh465/Openssl-1.1.1g_CVE-2022-4304 | 2023-04-24 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.openssl.org/news/secadv/20230207.txt | 2024-02-04 | |
| https://access.redhat.com/security/cve/CVE-2022-4304 | 2023-07-18 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2164487 | 2023-07-18 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 1.0.2 < 1.0.2zg Search vendor "Openssl" for product "Openssl" and version " >= 1.0.2 < 1.0.2zg" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 1.1.1 < 1.1.1t Search vendor "Openssl" for product "Openssl" and version " >= 1.1.1 < 1.1.1t" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 3.0.0 < 3.0.8 Search vendor "Openssl" for product "Openssl" and version " >= 3.0.0 < 3.0.8" | - |
Affected
| ||||||
| Stormshield Search vendor "Stormshield" | Endpoint Security Search vendor "Stormshield" for product "Endpoint Security" | < 7.2.40 Search vendor "Stormshield" for product "Endpoint Security" and version " < 7.2.40" | - |
Affected
| ||||||
| Stormshield Search vendor "Stormshield" | Sslvpn Search vendor "Stormshield" for product "Sslvpn" | < 3.2.1 Search vendor "Stormshield" for product "Sslvpn" and version " < 3.2.1" | - |
Affected
| ||||||
| Stormshield Search vendor "Stormshield" | Stormshield Network Security Search vendor "Stormshield" for product "Stormshield Network Security" | >= 2.7.0 < 2.7.11 Search vendor "Stormshield" for product "Stormshield Network Security" and version " >= 2.7.0 < 2.7.11" | - |
Affected
| ||||||
| Stormshield Search vendor "Stormshield" | Stormshield Network Security Search vendor "Stormshield" for product "Stormshield Network Security" | >= 2.8.0 < 3.7.34 Search vendor "Stormshield" for product "Stormshield Network Security" and version " >= 2.8.0 < 3.7.34" | - |
Affected
| ||||||
| Stormshield Search vendor "Stormshield" | Stormshield Network Security Search vendor "Stormshield" for product "Stormshield Network Security" | >= 3.8.0 < 3.11.22 Search vendor "Stormshield" for product "Stormshield Network Security" and version " >= 3.8.0 < 3.11.22" | - |
Affected
| ||||||
| Stormshield Search vendor "Stormshield" | Stormshield Network Security Search vendor "Stormshield" for product "Stormshield Network Security" | >= 4.0.0 < 4.3.16 Search vendor "Stormshield" for product "Stormshield Network Security" and version " >= 4.0.0 < 4.3.16" | - |
Affected
| ||||||
| Stormshield Search vendor "Stormshield" | Stormshield Network Security Search vendor "Stormshield" for product "Stormshield Network Security" | >= 4.4.0 < 4.6.3 Search vendor "Stormshield" for product "Stormshield Network Security" and version " >= 4.4.0 < 4.6.3" | - |
Affected
| ||||||