kritik
CVE-2017-18922
libvncserver: websocket decoding buffer overflow
En geç 24 Eki 2026, 07:11 UTC tarihinden beri Trivy database'indeO derlemeden önce ne zaman girdiği kayıtlı değil.
Kaynağa göre önem derecesi
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy'nin kendi etiketi CRITICAL. Kritik diyenler: NVD. Daha düşük diyenler: Red Hat (yüksek), AlmaLinux (yüksek), Oracle (yüksek), Ubuntu (orta).
Açıklama
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.
Etkilenen paketler ve düzeltilmiş sürümler
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| alma 8 | libvncserver-devel | 0.9.11-15.el8_2.1 |
| debian 10 | libvncserver | düzeltme belirtilmemiş |
| debian 11 | libvncserver | 0.9.12+dfsg-3 |
| debian 12 | libvncserver | 0.9.12+dfsg-3 |
| debian 13 | libvncserver | 0.9.12+dfsg-3 |
| debian 14 | libvncserver | 0.9.12+dfsg-3 |
| debian 9 | libvncserver | düzeltme belirtilmemiş |
| echo | libvncserver | 0.9.12+dfsg-3 |
| Oracle Linux 7 | libvncserver, libvncserver-devel | 0.9.9-14.el7_8.1 |
| Oracle Linux 8 | libvncserver, libvncserver-devel | 0.9.11-15.el8_2.1 |
| ubuntu 16.04 | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.4 |
| ubuntu 16.04-ESM | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.4 |
17 kaynaktaki 19 kaydın hepsini göster
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| alma 8 | libvncserver-devel | 0.9.11-15.el8_2.1 |
| debian 10 | libvncserver | düzeltme belirtilmemiş |
| debian 11 | libvncserver | 0.9.12+dfsg-3 |
| debian 12 | libvncserver | 0.9.12+dfsg-3 |
| debian 13 | libvncserver | 0.9.12+dfsg-3 |
| debian 14 | libvncserver | 0.9.12+dfsg-3 |
| debian 9 | libvncserver | düzeltme belirtilmemiş |
| echo | libvncserver | 0.9.12+dfsg-3 |
| Oracle Linux 7 | libvncserver | 0.9.9-14.el7_8.1 |
| Oracle Linux 7 | libvncserver-devel | 0.9.9-14.el7_8.1 |
| Oracle Linux 8 | libvncserver | 0.9.11-15.el8_2.1 |
| Oracle Linux 8 | libvncserver-devel | 0.9.11-15.el8_2.1 |
| ubuntu 16.04 | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.4 |
| ubuntu 16.04-ESM | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.4 |
| ubuntu 18.04 | libvncserver | 0.9.11+dfsg-1ubuntu1.2 |
| ubuntu 18.04-ESM | libvncserver | 0.9.11+dfsg-1ubuntu1.2 |
| ubuntu 19.10 | libvncserver | 0.9.11+dfsg-1.3ubuntu0.1 |
| ubuntu 20.04 | libvncserver | 0.9.12+dfsg-9ubuntu0.1 |
| ubuntu 20.04-ESM | libvncserver | 0.9.12+dfsg-9ubuntu0.1 |
Referanslar
- 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://access.redhat.com/security/cve/CVE-2017-18922
- https://bugzilla.redhat.com/show_bug.cgi?id=1852356
19 referansın hepsi
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
- https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433
- https://linux.oracle.com/cve/CVE-2017-18922.html
- https://linux.oracle.com/errata/ELSA-2020-3385.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/
- https://nvd.nist.gov/vuln/detail/CVE-2017-18922
- https://ubuntu.com/security/notices/USN-4407-1
- https://usn.ubuntu.com/4407-1/
- https://www.cve.org/CVERecord?id=CVE-2017-18922
- https://www.openwall.com/lists/oss-security/2020/06/30/2