CVE catalog

CVE-2018-16870

wolfssl: CVE-2018-16870

Severity: Medium
Published: Jan 3, 2019, 4:29:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.58% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	wolfssl	sid	`5.9.2-1.2`	fixed
Debian	wolfssl	trixie	`5.7.2-0.1+deb13u2`	fixed
Debian	wolfssl	bookworm	`5.5.4-2+deb12u2`	fixed
Debian	wolfssl	bookworm-security	`5.5.4-2+deb12u3`	fixed
Ubuntu	wolfssl	16.04	`3.4.8+dfsg-1`	vulnerable
Ubuntu	wolfssl	18.04	`3.10.2+dfsg-2`	vulnerable
Ubuntu	wolfssl	18.04	`3.12.0+dfsg-1`	vulnerable
Ubuntu	wolfssl	18.04	`3.12.2+dfsg-1`	vulnerable
Ubuntu	wolfssl	18.04	`3.13.0+dfsg-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	wolfssl	source	sid	`4.1.0+dfsg-1`	not yet assigned	Not reported	[918952]
Debian	wolfssl	source	trixie	`4.1.0+dfsg-1`	not yet assigned	Not reported	[918952]
Debian	wolfssl	source	bookworm	`4.1.0+dfsg-1`	not yet assigned	Not reported	[918952]

[Debian bug #918952]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libwolfssl35]Fixed
Source package: [wolfssl]
Details (4)
- 5.5.4-2+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
- 5.5.4-2+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
- 5.5.4-2+deb12u3 · amd64 · bookworm-security
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
- 5.5.4-2+deb12u3 · arm64 · bookworm-security
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
[libwolfssl-dev]Fixed
Source package: [wolfssl]
Details (4)
- 5.5.4-2+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
- 5.5.4-2+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
- 5.5.4-2+deb12u3 · amd64 · bookworm-security
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
- 5.5.4-2+deb12u3 · arm64 · bookworm-security
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12

[Debian 13 (Trixie)]

[libwolfssl42t64]Fixed
Source package: [wolfssl]
Details (2)
- 5.7.2-0.1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · 13
- 5.7.2-0.1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · 13
[libwolfssl-dev]Fixed
Source package: [wolfssl]
Details (2)
- 5.7.2-0.1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · 13
- 5.7.2-0.1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 4.1.0+dfsg-1
  dsa · wolfssl · debian · 13

Observed: Oct 23, 2026, 5:35:12 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]