Medium severity · published Jul 28, 2018
CVE-2018-0497
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…
5.9
CVSS
2.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
MT
Mbed Tls · Arm
before 2.1.14; 2.2.0 before 2.7.5; 2.8.0 before 2.12.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-0497
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-0497
Mailing List
https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html
Mitigation
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02
usn.ubuntu.com
https://usn.ubuntu.com/4267-1/
Third Party Advisory
https://www.debian.org/security/2018/dsa-4296
More from Mbed Tls
9.8
CVE-2026-34877
An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0
9.8
CVE-2025-47917
Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation
9.8
CVE-2022-46393
An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0
9.8
CVE-2021-44732
Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_session() failure
9.8
CVE-2017-18187
In ARM mbed TLS before 2.7.0, there is a bounds-check bypass through an integer overflow in PSK identity parsing in the ssl_parse_client_psk_identity() function in…