ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://www.debian.org/security/2018/dsa-4147 | third party advisory vendor advisory |
| https://www.debian.org/security/2018/dsa-4138 | third party advisory vendor advisory |
| https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01 | mitigation vendor advisory |
| http://www.securityfocus.com/bid/103056 | third party advisory vdb entry |
| https://security.gentoo.org/glsa/201804-19 | third party advisory vendor advisory |
| https://usn.ubuntu.com/4267-1/ | vendor advisory |