CVE-2018-16870: wolfssl
CVSS: 5.9v3.0MediumModified
AliasesUBUNTU-CVE-2018-16870DEBIAN-CVE-2018-16870
Published 03-01-2019Last modified 05-08-2024
Vulnerability summary
CVE-2018-16870 is a medium (CVSS 5.9) vulnerability in wolfssl. EPSS estimates a 1.58% chance of exploitation in the next 30 days, higher than 75.2% of scored vulnerabilities.
CVSS score
5.9/10
010
Medium · v3.0 (NVD)EPSS score
1.58%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 03-01-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
It was found that wolfssl before 3.15.7 is vulnerable to a new variant of the Bleichenbacher attack to perform downgrade attacks against TLS. This may lead to leakage of sensible data.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.9Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesAll 3 agree
- 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
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.58%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.58% on 20-09-2026
20-09-202620-10-2026
EPSS score1.58%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-310Cryptographic IssuesWeaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.
Affected systems
Debian1 product
- wolfssl< 4.1.0+dfsg-1
Ubuntu1 product
- wolfsslAll versions (No fix recorded)
Wolfssl1 product
- wolfssl< 3.15.7
3 vendors · 3 products
