CVE-2018-0497: Medium severity Arm mbed TLS vulnerability

Published Jul 28, 2018
·
Updated

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

6 affected componentsFixes available
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
debian/mbedtls
2.16.9-0.12.16.9-0.1+deb11u32.28.3-13.6.5-0.1~deb13u13.6.5-0.1

Event History

Jul 28, 2018
CVE Published
via MITRE·05:00 PM
Data Sourced
via MITRE·05:00 PM
DescriptionWeakness
Data Sourced
via NVD·05:29 PM
DescriptionSeverityAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·10:43 PM
Description
Feb 19, 2026
Data Sourced
via Ubuntu·10:14 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Debian·10:15 PM
DescriptionAffected Software
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Frequently Asked Questions

1

What is CVE-2018-0497?

CVE-2018-0497 is a vulnerability in ARM mbed TLS that allows remote attackers to achieve partial plaintext recovery via a timing-based side-channel attack.

2

How does CVE-2018-0497 work?

CVE-2018-0497 works by exploiting a timing-based side-channel attack in the CBC based ciphersuite of ARM mbed TLS.

3

What is the severity of CVE-2018-0497?

CVE-2018-0497 has a severity rating of 5.9, which is classified as medium.

4

Which version of ARM mbed TLS is affected by CVE-2018-0497?

ARM mbed TLS versions before 2.12.0, 2.7.5, and 2.1.14 are affected by CVE-2018-0497.

5

How can I fix CVE-2018-0497?

To fix CVE-2018-0497, update ARM mbed TLS to version 2.12.0 or later.

Company

Resources

Contact

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