CVE catalog
CVE-2018-1000808
pyopenssl: CVE-2018-1000808
- Severity
- Low · CVSS 3.7
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.90% · Oct 25, 2026
Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything that would cause the calling application to reload certificates from a PKCS #12 store.. This vulnerability appears to have been fixed in 17.5.0.
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 | pyopenssl | sid | 26.4.0-1 | fixed |
| Debian | pyopenssl | forky | 26.4.0-1 | fixed |
| Debian | pyopenssl | trixie | 25.0.0-1+deb13u1 | fixed |
| Debian | pyopenssl | bookworm | 23.0.0-1 | fixed |
| Ubuntu | pyopenssl | 16.04 | 0.15.1-2build1 | vulnerable |
| Ubuntu | pyopenssl | 16.04 | 0.15.1-2ubuntu0.2 | fixed |
| Alpine | py-openssl | 3.6 | 17.5.0-r0 | fixed |
| Alpine | py-openssl | 3.7 | 17.5.0-r0 | fixed |
| Alpine | py-openssl | 3.8 | 17.5.0-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pyopenssl | source | sid | 17.5.0-1 | low | Not reported | Not reported |
| Debian | pyopenssl | source | forky | 17.5.0-1 | low | Not reported | Not reported |
| Debian | pyopenssl | source | trixie | 17.5.0-1 | low | Not reported | Not reported |
| Debian | pyopenssl | source | bookworm | 17.5.0-1 | low | Not reported | Not reported |
| Ubuntu | pyopenssl | deb | 16.04 | 0.15.1-2ubuntu0.2 | Not reported | UBUNTU-CVE-2018-1000808 | Not reported |
| Alpine | py-openssl | apk | 3.6 | 17.5.0-r0 | Not reported | ALPINE-CVE-2018-1000808 | Not reported |
| Alpine | py-openssl | apk | 3.7 | 17.5.0-r0 | Not reported | ALPINE-CVE-2018-1000808 | Not reported |
| Alpine | py-openssl | apk | 3.8 | 17.5.0-r0 | Not reported | ALPINE-CVE-2018-1000808 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [python3-openssl]Unknown
Source package: [pyopenssl]
Details (2)
23.0.0-1· all · bookwormFixed · Fixed:
17.5.0-1dsa · pyopenssl · debian · bookworm; dsa · pyopenssl · debian · 12
23.0.0-1· all · bookwormFixed · Fixed:
17.5.0-1dsa · pyopenssl · debian · bookworm; dsa · pyopenssl · debian · 12
- [python-openssl-doc]Unknown
Source package: [pyopenssl]
Details (2)
23.0.0-1· all · bookwormFixed · Fixed:
17.5.0-1dsa · pyopenssl · debian · bookworm; dsa · pyopenssl · debian · 12
23.0.0-1· all · bookwormFixed · Fixed:
17.5.0-1dsa · pyopenssl · debian · bookworm; dsa · pyopenssl · debian · 12
[Debian 13 (Trixie)]
- [python3-openssl]Unknown
Source package: [pyopenssl]
Details (2)
25.0.0-1+deb13u1· all · trixieFixed · Fixed:
17.5.0-1dsa · pyopenssl · debian · 13
25.0.0-1+deb13u1· all · trixieFixed · Fixed:
17.5.0-1dsa · pyopenssl · debian · 13
- [python-openssl-doc]Unknown
Source package: [pyopenssl]
Details (2)
25.0.0-1+deb13u1· all · trixieFixed · Fixed:
17.5.0-1dsa · pyopenssl · debian · 13
25.0.0-1+deb13u1· all · trixieFixed · Fixed:
17.5.0-1dsa · pyopenssl · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-ru-2019_1161-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2018-1000808]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2018-1000808]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2018-1000808]
- [https://security-tracker.debian.org/tracker/CVE-2018-1000808]
- [https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-1000808.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2018/wid-sec-w-2024-1099.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]