Multiple vulnerabilities in wolfSSL
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2022-42961 CVE-2022-38152 |
| CWE-ID | CWE-1256 CWE-763 CWE-399 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
wolfSSL Universal components / Libraries / Libraries used by multiple products |
| Vendor | wolfSSL |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Improper restriction of software interfaces to hardware features
EUVDB-ID: #VU66876
Risk: Low
CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-42961
CWE-ID:
CWE-1256 - Improper restriction of software interfaces to hardware features
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to the way wolfSSL handles operations with private ECC keys such as server side TLS connections and creation of ECC signatures. A malicious server can perform fault injection attack on RAM (e.g. using Rowhammer attack) and obtain the ECDSA key.
Install updates from vendor's website.
Vulnerable software versionswolfSSL: 5.0.0 - 5.4.0
External linkshttp://github.com/wolfSSL/wolfssl/releases/tag/v5.5.0-stable
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Release of invalid pointer or reference
EUVDB-ID: #VU66877
Risk: Low
CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-763 - Release of invalid pointer or reference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an invalid free when handling large session tickets with TLS 1.2 and TLS 1.3 connections. A malicious server or attacker with ability to perform MitM attack (only against TLS 1.2 connection) can pass an overly large session ticket to the client and crash the application.
Note, successful exploitation of the vulnerability requires that wolfSSL is compiled with --enable-session-ticket and the client has non-empty session cache.
MitigationInstall updates from vendor's website.
Vulnerable software versionswolfSSL: 5.3.0 - 5.4.0
External linkshttp://github.com/wolfSSL/wolfssl/releases/tag/v5.5.0-stable
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Resource management error
EUVDB-ID: #VU66878
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-38152
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources if using wolfSSL_clear to reset a WOLFSSL object during TLS 1.3 resumption. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionswolfSSL: 5.0.0 - 5.4.0
External linkshttp://github.com/wolfSSL/wolfssl/releases/tag/v5.5.0-stable
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Input validation error
EUVDB-ID: #VU66879
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in DTLS 1.2 implementation. A remote attacker can send a malicious plaintext handshake message at epoch 0 and perform a denial of service (DoS) attack. The vulnerability affects both server and client side.
MitigationInstall updates from vendor's website.
Vulnerable software versionswolfSSL: 5.0.0 - 5.4.0
External linkshttp://github.com/wolfSSL/wolfssl/releases/tag/v5.5.0-stable
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
