CVE-2017-18922

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.

References

https://www.openwall.com/lists/oss-security/2020/06/30/2

https://usn.ubuntu.com/4407-1/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/

https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433

https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf

https://bugzilla.redhat.com/show_bug.cgi?id=1852356

http://www.openwall.com/lists/oss-security/2020/06/30/3

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3