Description
It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/06/30/3Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1852356Issue Tracking, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfPatch, Third Party Advisory
- https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/
- https://usn.ubuntu.com/4407-1/Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/06/30/2Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/06/30/3Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1852356Issue Tracking, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfPatch, Third Party Advisory
- https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/
- https://usn.ubuntu.com/4407-1/Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/06/30/2Mailing List, Third Party Advisory
Timeline
- Published
- Jun 30, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified