Medium severity5.9OSV Advisory· Published Jul 28, 2018· Updated Jun 17, 2026

CVE-2018-0497

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.

Affected products

Arm/MbedTLSOSV2 versions
beta-oob-2, mbedos-release-15-11, mbedtls-2.0.0, …+ 1 more
- (no CPE)range: beta-oob-2, mbedos-release-15-11, mbedtls-2.0.0, …
- (no CPE)range: <2.12.0, <2.7.5, <2.1.14

Patches

Vulnerability mechanics

References

lists.debian.org/debian-lts-announce/2018/09/msg00029.htmlnvdMailing ListThird Party Advisory
tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02nvdMitigationThird Party Advisory
www.debian.org/security/2018/dsa-4296nvdThird Party Advisory
usn.ubuntu.com/4267-1/nvd

News mentions

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cvss	0.384
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000