Is CVE-2018-1000807 in the CISA KEV catalog?

No. CVE-2018-1000807 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-1000807?

CVE-2018-1000807 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2018-1000807?

CVE-2018-1000807 has an EPSS score of 4.08% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-1000807?

Upgrade pyopenssl on debian 11 to 17.5.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2018-1000807

HIGHEPSS 89th pctl

8.1

CVSS v3

NVD

Description

Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object handling that can result in Use after free can lead to possible denial of service or remote code execution.. This attack appear to be exploitable via Depends on the calling application and if it retains a reference to the memory.. This vulnerability appears to have been fixed in 17.5.0.

CWE-416Use After Free

How to fix

Remediation Available

pyopensslDebian

Fixed in:17.5.0-1CVE-2018-1000807

pyopensslUbuntu

Fixed in:0.15.1-2ubuntu0.2USN-3813-1

python-opensslUbuntu

Fixed in:0.15.1-2ubuntu0.2USN-3813-1

python3-opensslUbuntu

Fixed in:0.15.1-2ubuntu0.2USN-3813-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

4.08%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory3

Other references1

github.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

Embed a live status badge for CVE-2018-1000807

Markdown

[![CVE-2018-1000807](https://tridentstack.com/cve/badge/CVE-2018-1000807.svg)](https://tridentstack.com/cve/CVE-2018-1000807)

HTML

<a href="https://tridentstack.com/cve/CVE-2018-1000807"><img src="https://tridentstack.com/cve/badge/CVE-2018-1000807.svg" alt="CVE-2018-1000807"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.