CVE-2018-0497: arm mbed_tls
Vulnerability summary
CVE-2018-0497 is a medium (CVSS 5.9) vulnerability in arm mbed_tls. EPSS estimates a 2.77% chance of exploitation in the next 30 days, higher than 86.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 28-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
2.77%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
+0.10 pp
From 2.67% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Debian2 products
- mbedtls< 2.12.0-1
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- mbedtls< 2.12.0-r0
Arm1 product
- mbed_tls< 2.1.14 | ≥ 2.2.0, < 2.7.5 | ≥ 2.8.0, < 2.12.0
Ubuntu1 product
- mbedtls< 2.2.1-2ubuntu0.3 | All versions (No fix recorded)
4 vendors · 5 products
References
9 links
lists.debian.org/debian-lts-announce/2018/09/msg00029.htmlMailing ListX Refsource MLISTThird Party Advisory- tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02X Refsource CONFIRMMitigationThird Party AdvisoryREPORT