Vulnerability Details : 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.
Vulnerability category: Memory CorruptionExecute codeDenial of service
Products affected by CVE-2018-1000807
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:a:pyopenssl:pyopenssl:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-1000807
9.54%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-1000807
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST |
CWE ids for CVE-2018-1000807
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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-1000807
-
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html
[security-announce] openSUSE-SU-2019:1104-1: important: Security updateMailing List;Third Party Advisory
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https://github.com/pyca/pyopenssl/pull/723
fix a memory leak and a potential UAF and also #722 by reaperhulk · Pull Request #723 · pyca/pyopenssl · GitHubPatch;Third Party Advisory
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https://access.redhat.com/errata/RHSA-2019:0085
RHSA-2019:0085 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509
fix a memory leak and a potential UAF and also #722 (#723) · pyca/pyopenssl@e738186 · GitHub
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https://usn.ubuntu.com/3813-1/
USN-3813-1: pyOpenSSL vulnerabilities | Ubuntu security noticesThird Party Advisory
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