CVE-2018-1000808
First published: Mon Oct 08 2018(Updated: )
It was discovered that pyOpenSSL incorrectly handled memory when performing operations on a PKCS #12 store. A remote attacker could possibly use this issue to cause pyOpenSSL to consume resources, resulting in a denial of service. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection 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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/pyopenssl | <17.5.0 | 17.5.0 |
| Pyopenssl Project Pyopenssl | <17.5.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Redhat Gluster Storage | =3.0 | |
| Redhat Openstack | =13 | |
| Redhat Enterprise Linux Desktop | =7.0 | |
| Redhat Enterprise Linux Server | =7.0 | |
| Redhat Enterprise Linux Workstation | =7.0 | |
| redhat/pyOpenSSL | <17.5.0 | 17.5.0 |
| debian/pyopenssl | 20.0.1-1 23.0.0-1 24.2.1-1 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000808
- https://github.com/pyca/pyopenssl/pull/723
- https://access.redhat.com/errata/RHSA-2019:0085
- https://github.com/advisories/GHSA-2rcm-phc9-3945 (Advisory)
- https://usn.ubuntu.com/3813-1/
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html
- https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509
- https://launchpad.net/bugs/cve/CVE-2018-1000808
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1640218
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1640219
- https://bugzilla.redhat.com/show_bug.cgi?id=1640216
- https://security-tracker.debian.org/tracker/CVE-2018-1000808
- https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2018-24.yaml
- https://usn.ubuntu.com/3813-1
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000808
- https://ubuntu.com/security/CVE-2018-1000808
Frequently Asked Questions
What is the vulnerability ID for pyOpenSSL?
The vulnerability ID for pyOpenSSL is CVE-2018-1000808.
What is the severity rating of CVE-2018-1000808?
CVE-2018-1000808 has a severity rating of 5.9, which is considered medium.
How can CVE-2018-1000808 be exploited?
CVE-2018-1000808 can be exploited by an attacker when memory runs low or is exhausted in the PKCS #12 Store, resulting in a denial of service.
How can I fix the CVE-2018-1000808 vulnerability in pyOpenSSL?
To fix the CVE-2018-1000808 vulnerability in pyOpenSSL, update to version 17.5.0 or above.
Where can I find more information about CVE-2018-1000808?
You can find more information about CVE-2018-1000808 at the following references: [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-1000808), [GitHub](https://github.com/pyca/pyopenssl/pull/723), [Red Hat](https://access.redhat.com/errata/RHSA-2019:0085).
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