8.1

CVE-2018-1000807

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Pyopenssl ≫ Pyopenssl Version < 17.5.0
Canonical ≫ Ubuntu Linux Version16.04 SwEditionlts
Redhat ≫ Openstack Version13
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 4.08% 0.894
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.1 2.2 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html
Third Party Advisory
Mailing List
https://access.redhat.com/errata/RHSA-2019:0085
Third Party Advisory
https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509
https://github.com/pyca/pyopenssl/pull/723
Patch
Third Party Advisory
https://usn.ubuntu.com/3813-1/
Third Party Advisory