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Fencer Intel
medium 5.9

CVE-2018-0497 json

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…

published 8y ago modified 4mo ago also EUVD-2018-1320

cvss
5.9
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.8%
EPSS 2.8% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

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.

Patch / fix

  • arm mbed_tls 2.1.14, 2.7.5, 2.12.0
  • mbedtls Debian 14, Debian 13, Debian 12 2.12.0-1

debian advisories DEBIAN-CVE-2018-0497

  • mbedtls Ubuntu 16.04 LTS 2.2.1-2ubuntu0.3

ubuntu advisories UBUNTU-CVE-2018-0497

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mbedtls Alpine 3.24, Alpine 3.23, Alpine 3.22 +13 more 2.12.0-r0
  • mbedtls Alpine 3.8 2.7.5-r0
  • mbedtls2 Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 2.12.0-r0
  • mbedtls3 Alpine 3.24 2.12.0-r0

alpine advisories ALPINE-CVE-2018-0497

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mbedtls Arch Linux 2.12.0-1

arch linux advisories AVG-742

Is CVE-2018-0497 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-0497 updated cvss 9.1

mbedtls: Two critical flaws fixed in latest release

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.77% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • n/a ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.