Vulnerability Description
OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Infradead | Openconnect | 8.09 |
| Fedoraproject | Fedora | 30 |
| Debian | Debian Linux | 8.0 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.htmlMailing ListThird Party Advisory
- https://bugs.gentoo.org/721570ExploitThird Party Advisory
- https://gitlab.com/openconnect/openconnect/-/merge_requests/108PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00015.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202006-15Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.htmlMailing ListThird Party Advisory
- https://bugs.gentoo.org/721570ExploitThird Party Advisory
- https://gitlab.com/openconnect/openconnect/-/merge_requests/108PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00015.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2020-12823?
CVE-2020-12823 is a vulnerability with a CVSS score of 9.8 (CRITICAL). OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c.
How severe is CVE-2020-12823?
CVE-2020-12823 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-12823?
Check the references section above for vendor advisories and patch information. Affected products include: Infradead Openconnect, Fedoraproject Fedora, Debian Debian Linux, Opensuse Leap.