high
8.1
CWE
416
Advisory Published
Advisory Published
Updated

CVE-2018-1000807: Use After Free

First published: Mon Oct 08 2018(Updated: )

It was discovered that pyOpenSSL incorrectly handled memory when handling X509 objects. A remote attacker could use this issue to cause pyOpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This attack appears 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.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Pyopenssl Pyopenssl<17.5.0
Canonical Ubuntu Linux=16.04
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
pip/pyopenssl<17.5.0
17.5.0
debian/pyopenssl
20.0.1-1
23.0.0-1
24.2.1-1
24.3.0-1

Remedy

https://github.com/pyca/pyopenssl/pull/723

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2018-1000807.

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

    The severity of CVE-2018-1000807 is high with a CVSS score of 8.1.

  • What is the affected software for CVE-2018-1000807?

    The affected software for CVE-2018-1000807 includes python Cryptographic Authority pyopenssl version prior to version 17.5.0.

  • How can the vulnerability be exploited?

    The vulnerability can be exploited through the use after free vulnerability in X509 object handling, which can lead to possible denial of service or remote code execution.

  • Where can I find more information about CVE-2018-1000807?

    You can find more information about CVE-2018-1000807 at the following references: [GitHub](https://github.com/pyca/pyopenssl/pull/723), [Ubuntu Security Notice](https://usn.ubuntu.com/3813-1/), [Red Hat Security Advisory](https://access.redhat.com/errata/RHSA-2019:0085).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203