VulnerabilityModified
CVE-2020-12823
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.
CRITICAL 9.8EPSS 4.62%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.62% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- infradead/openconnect · fedoraproject/fedora · debian/debian linux · opensuse/leap
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.htmlMailing List, Third Party Advisory
- https://bugs.gentoo.org/721570Exploit, Third Party Advisory
- https://gitlab.com/openconnect/openconnect/-/merge_requests/108Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00015.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/
- https://security.gentoo.org/glsa/202006-15Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.htmlMailing List, Third Party Advisory
- https://bugs.gentoo.org/721570Exploit, Third Party Advisory
- https://gitlab.com/openconnect/openconnect/-/merge_requests/108Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00015.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/
- https://security.gentoo.org/glsa/202006-15Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.