ISOMAN

CVE

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.

Severity
CRITICAL
CVSS
9.8
Published
Modified
NVD detailAll CVEs

Linked Releases

DistributionReleaseStatusEvidence
Ubuntu20.04.6 amd64 desktopunknownsource
Ubuntu20.04.6 amd64 live-serverunknownsource
Ubuntu18.04.6 amd64 desktopunknownsource
Ubuntu18.04.6 amd64 live-serverunknownsource
Ubuntu16.04.7 amd64 desktopunknownsource
Ubuntu16.04.6 i386 desktopunknownsource
Ubuntu16.04.7 amd64 serverunknownsource
Ubuntu16.04.6 i386 serverunknownsource

References

  1. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.html
  2. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.html
  3. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html
  4. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html
  5. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html
  6. http://www.openwall.com/lists/oss-security/2020/06/30/3
  7. https://bugzilla.redhat.com/show_bug.cgi?id=1852356
  8. https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
  9. https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433
  10. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/
  11. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/
  12. https://usn.ubuntu.com/4407-1/
  13. https://www.openwall.com/lists/oss-security/2020/06/30/2
  14. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.html
  15. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.html
  16. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html
  17. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html
  18. http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html
  19. http://www.openwall.com/lists/oss-security/2020/06/30/3
  20. https://bugzilla.redhat.com/show_bug.cgi?id=1852356