CVE-2018-0497 Information disclosure in ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14
Remote attackers can recover partial plaintext from CBC ciphersuites via timing side-channel attacks in mbed TLS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-0497?
CVE-2018-0497 is a medium-severity vulnerability in Arm Mbed Tls, published on 28 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2018-0497?
It affects 2 products.
Products include Arm Mbed Tls, Debian Debian Linux.
How do I fix CVE-2018-0497?
Upgrade to a fixed version.
Is CVE-2018-0497 being exploited?
There is no known exploitation of CVE-2018-0497 in the wild and no public exploit code.
Other vulnerabilities in Arm Mbed Tls
Sources
Also known as ALPINE-CVE-2018-0497, DEBIAN-CVE-2018-0497, GHSA-pxhv-jv3r-8j7f, UBUNTU-CVE-2018-0497.