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Fencer Vulns
medium 5.5

CVE-2024-23170 json

An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2

published 2024-01-31 2 y ago modified 2026-07-18 3 mo ago also EUVD-2024-20689 , JLSEC-2025-223

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2. There was a timing side channel in RSA private operations. This side channel could be sufficient for a local attacker to recover the plaintext. It requires the attacker to send a large number of messages for decryption, as described in "Everlasting ROBOT: the Marvin Attack" by Hubert Kario.

Patch / fix

  • julia MbedTLS_jll 2.28.10+0
  • arm mbed_tls 2.28.7
  • trustedfirmware mbed_tls 3.5.2
  • mbedtls Debian 14, Debian 13 2.28.7-1

debian advisories DEBIAN-CVE-2024-23170

  • mbedtls openSUSE Tumbleweed 3.5.2-1.1
  • mbedtls-2 openSUSE Tumbleweed 2.28.7-1.1
  • mbedtls Package Hub 15 SP5, openSUSE Leap 15.5 2.28.7-bp155.2.3.1

opensuse advisories openSUSE-SU-2024:13639-1openSUSE-SU-2024:13640-1openSUSE-SU-2024:0037-1

  • mbedtls Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 2.28.7-r0
  • mbedtls2 Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 2.28.7-r0
  • mbedtls3 Alpine 3.24 2.28.7-r0

alpine advisories ALPINE-CVE-2024-23170

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

  • hvloader CBL-Mariner 2.0 1.0.1-6

azure linux advisories AZL-47697

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2024-23170 updated

mbedtls: multiple vulnerabilties

  • 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
julia MbedTLS_jll
<2.28.10+0
2.28.10+0

Classification

Weakness

References

Sources

Fencer Vulns 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.