CVE-2018-0497

Name: CVE-2018-0497
Creator: NVD / NIST
Published: 2018-07-28T17:29:00.24+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.31%

Last modified Jun 17, 2026

CVE-2018-0497 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.31% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.31%

81.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Arm	Mbed Tls	< 2.1.14
Arm	Mbed Tls	>= 2.2.0, < 2.7.5
Arm	Mbed Tls	>= 2.8.0, < 2.12.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://lists.debian.org/debian-lts-announce/2018/09/msg00029.htmlMailing List, Third Party Advisory
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02Mitigation, Third Party Advisory
https://usn.ubuntu.com/4267-1/
https://www.debian.org/security/2018/dsa-4296Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00029.htmlMailing List, Third Party Advisory
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02Mitigation, Third Party Advisory
https://usn.ubuntu.com/4267-1/
https://www.debian.org/security/2018/dsa-4296Third Party Advisory

Timeline

Published: Jul 28, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0497?

How severe is CVE-2018-0497?

Severity scoring for CVE-2018-0497 is pending analysis. The EPSS model estimates a 2.31% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0497?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0497?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST