CVE-2018-0487: arm mbed_tls
CVSS: 9.8v3.0CriticalModified
AliasesALPINE-CVE-2018-0487UBUNTU-CVE-2018-0487DEBIAN-CVE-2018-0487
Published 13-02-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-0487 is a critical (CVSS 9.8) vulnerability in arm mbed_tls. EPSS estimates a 3.26% chance of exploitation in the next 30 days, higher than 88.2% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
3.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 8 · Related 5Timeline
- 13-02-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session.
CVSS metrics
5 scores · 4 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
3.26%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.26% on 20-09-2026
20-09-202620-10-2026
EPSS score3.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- mbedtls< 2.7.0-2
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- mbedtls< 2.7.0-r0
Arm1 product
- mbed_tls≥ 1.3.8, < 1.3.22 | ≥ 2.1.0, < 2.1.10 | ≥ 2.2.0, < 2.7.0
Ubuntu1 product
- mbedtls< 2.2.1-2ubuntu0.3
4 vendors · 5 products
References
11 links
- tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01X Refsource CONFIRMMitigationVendor AdvisoryREPORT