CVE-2017-18922
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.
- Score
- CVSS 3.1 9.8 Critical
- Status
- Modified - cve@mitre.org
- Published
- 2020-06-30
- Last modified
- 2024-08-05
- Weaknesses
- CWE-787
Affected products
- Ubuntu Linux (Canonical)
- Fedora (Fedoraproject)
- Libvncserver (Libvncserver Project)
- Leap (Opensuse)
- Simatic Itc1500 Firmware (Siemens)
- Simatic Itc1500 Pro Firmware (Siemens)
- Simatic Itc1900 Firmware (Siemens)
- Simatic Itc1900 Pro Firmware (Siemens)
- Simatic Itc2200 Firmware (Siemens)
- Simatic Itc2200 Pro Firmware (Siemens)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html
- http://www.openwall.com/lists/oss-security/2020/06/30/3
- https://bugzilla.redhat.com/show_bug.cgi?id=1852356
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
- https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRT…
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN…
- https://usn.ubuntu.com/4407-1/
- https://www.openwall.com/lists/oss-security/2020/06/30/2
