![]() NovemNode.js listed as affected, in advance of fix. Users are still encouraged to upgrade to a new version as soon as possible. CVEID: CVE-2021-3711 DESCRIPTION: OpenSSL is vulnerable to a buffer overflow, caused by improper bounds checking by the EVPPKEYdecrypt() function within implementation of the SM2 decryption. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. The vulnerability is due to improper handling of Datagram Transport Layer Security (DTLS) fragments by a system running the affected application. The OpenSSL DTLS Fragment Processing Buffer Overflow Vulnerability has been assigned CVE ID CVE-2014-0195. It ultimately arrived as a 'high' security fix for a buffer overflow, one that affects all OpenSSL 3.x installations, but is unlikely to lead to remote code execution. Note: Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. If successful, the attacker could perform a man-in-the-middle attack against a targeted system. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.Ī full break down of this vulnerability can be found in our technical deep dive. In a TLS client, this can be triggered by connecting to a malicious server. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. a buffer for the string data which is terminated with a NUL (0) byte. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. Summary: OpenSSL is prone to a buffer overflow vulnerability. These vulnerabilities affect OpenSSL version 3.0.0 and later and have been addressed in OpenSSL 3.0.7. A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. ![]() Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. The advisory which outlines these bugs describes two buffer overflow / overrun vulnerabilities in the X.509 certificate validation, specifically within the name constraint validation. On 0, OpenSSL published an advisory about two high-severity security flaws - CVE-2022-3786 (X.509 Email Address Variable Length Buffer Overflow) and CVE-2022-3602 (X.509 Email Address 4-byte Buffer Overflow). The OpenSSL Project team has formally disclosed two new vulnerabilities related to X.509 Email Address Buffer Overflows, with the formal assignments of CVE-2022-3602 and CVE-2022-3786). A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking by the ossl_punycode_decode function. ![]() Fixed in OpenSSL 0.9.7l (Affected since 0.9.7) This issue was also addressed in OpenSSL 0.9.8d. An attacker could send a list of ciphers to an application that uses this function and overrun a buffer. Affected versions of this package are vulnerable to Buffer Overflow. A buffer overflow was discovered in the SSLgetsharedciphers() utility function.
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