CVE & CISA-KEV Catalog

CVE-2018-1000808

MEDIUMEPSS 77th pctl
5.9
CVSS v3
NVD

Description

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.

How to fix

Remediation Available
pyopensslDebian
Fixed in:17.5.0-1CVE-2018-1000808
Fixed in:17.5.0-1CVE-2018-1000808
Fixed in:17.5.0-1CVE-2018-1000808
Fixed in:17.5.0-1CVE-2018-1000808
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

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.90%probability of exploitation in 30 days
77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Third-Party Advisory2
Other references1
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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.