ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mbed_tls | Arm | * | 2.1.14 (excluding) |
| Mbed_tls | Arm | 2.2.0 (including) | 2.7.5 (excluding) |
| Mbed_tls | Arm | 2.8.0 (including) | 2.12.0 (excluding) |
| Mbedtls | Ubuntu | bionic | * |
| Mbedtls | Ubuntu | esm-apps/bionic | * |
| Mbedtls | Ubuntu | esm-apps/xenial | * |
| Mbedtls | Ubuntu | upstream | * |
| Mbedtls | Ubuntu | xenial | * |
| Polarssl | Ubuntu | trusty | * |
| Polarssl | Ubuntu | upstream | * |
References
- https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02
- https://usn.ubuntu.com/4267-1/
- https://www.debian.org/security/2018/dsa-4296
- https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02
- https://usn.ubuntu.com/4267-1/
- https://www.debian.org/security/2018/dsa-4296