An issue was discovered in wolfSSL before 5.5.0 (when --enable-session-ticket is used); however, only version 5.3.0 is exploitable. Man-in-the-middle...
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
An issue was discovered in wolfSSL before 5.5.0 (when --enable-session-ticket is used); however, only version 5.3.0 is exploitable. Man-in-the-middle attackers or a malicious server can crash TLS 1.2 clients during a handshake. If an attacker injects a large ticket (more than 256 bytes) into a NewSessionTicket message in a TLS 1.2 handshake, and the client has a non-empty session cache, the session cache frees a pointer that points to unallocated memory, causing the client to crash with a "free(): invalid pointer" message. NOTE: It is likely that this is also exploitable during TLS 1.3 handshakes between a client and a malicious server. With TLS 1.3, it is not possible to exploit this as a man-in-the-middle.
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2022-38153 wolfssl 修正版: 5.5.3-1
- Ubuntu UBUNTU-CVE-2022-38153 wolfssl
参照URL
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- package github.com
- patch github.com
- web packetstormsecurity.com
- web wolfssl.com
- web seclists.org
- web blog.trailofbits.com