#VU98757 Out-of-bounds write in OpenSSL - CVE-2024-9143
Published: October 16, 2024 / Updated: February 11, 2025
Vulnerability identifier: #VU98757
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-9143
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
OpenSSL
OpenSSL
Software vendor:
OpenSSL Software Foundation
OpenSSL Software Foundation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when using the low-level GF(2^m) elliptic curve APIs with untrusted explicit values for the field polynomial. A remote attacker can send specially crafted input to the server, trigger an out-of-bounds write and perform a denial of service (DoS) attack.
Note, the vulnerability can be exploited against the application in rare cases only that involve "exotic" curve encoding.
Remediation
Install update from vendor's website.
External links
- https://openssl-library.org/news/secadv/20241016.txt
- https://github.com/openssl/openssl/commit/c0d3e4d32d2805f49bec30547f225bc4d092e1f4
- https://github.com/openssl/openssl/commit/bc7e04d7c8d509fb78fc0e285aa948fb0da04700
- https://github.com/openssl/openssl/commit/fdf6723362ca51bd883295efe206cb5b1cfa5154
- https://github.com/openssl/openssl/commit/72ae83ad214d2eef262461365a1975707f862712
- https://github.openssl.org/openssl/extended-releases/commit/8efc0cbaa8ebba8e116f7b81a876a4123594d86a
- https://github.openssl.org/openssl/extended-releases/commit/9d576994cec2b7aa37a91740ea7e680810957e41