CVE-2018-20748
CVE-2018-20748
This page contains facts from public vulnerability sources. Check the original advisory before updating.
LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.
CVSS 9.8 · Critical · EPSS 3.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
n/a
- Versions
- n/a: Affected
No fix published
libvncserver Debian:12
- Affected ranges
- ECOSYSTEM: < 0.9.11+dfsg-1.3
Update to 0.9.11+dfsg-1.3
libvncserver Debian:13
- Affected ranges
- ECOSYSTEM: < 0.9.11+dfsg-1.3
Update to 0.9.11+dfsg-1.3
libvncserver Debian:14
- Affected ranges
- ECOSYSTEM: < 0.9.11+dfsg-1.3
Update to 0.9.11+dfsg-1.3
veyon Debian:12
- Affected ranges
- ECOSYSTEM: < 4.1.7+repack1-1
Update to 4.1.7+repack1-1
veyon Debian:13
- Affected ranges
- ECOSYSTEM: < 4.1.7+repack1-1
Update to 4.1.7+repack1-1
libvncserver Ubuntu:14.04:LTS
- Versions
- 0.9.9+dfsg-1
- 0.9.9+dfsg-1ubuntu1
- 0.9.9+dfsg-1ubuntu1.1
- 0.9.9+dfsg-1ubuntu1.2
- 0.9.9+dfsg-1ubuntu1.3
- Affected ranges
- ECOSYSTEM: < 0.9.9+dfsg-1ubuntu1.4
Update to 0.9.9+dfsg-1ubuntu1.4
tightvnc Ubuntu:Pro:14.04:LTS
- Versions
- 1.3.9-6.4
- 1.3.9-6.4ubuntu1
- Affected ranges
- ECOSYSTEM: < 1.3.9-6.5+deb8u1build0.14.04.1~esm1
Update to 1.3.9-6.5+deb8u1build0.14.04.1~esm1
italc Ubuntu:16.04:LTS
- Versions
- 1:2.0.2+dfsg1-3
- 1:2.0.2+dfsg1-4
- Affected ranges
- ECOSYSTEM: < 1:2.0.2+dfsg1-4ubuntu0.1
Update to 1:2.0.2+dfsg1-4ubuntu0.1
libvncserver Ubuntu:16.04:LTS
- Versions
- 0.9.10+dfsg-3
- 0.9.10+dfsg-3build1
- 0.9.10+dfsg-3ubuntu0.16.04.1
- 0.9.10+dfsg-3ubuntu0.16.04.2
- Affected ranges
- ECOSYSTEM: < 0.9.10+dfsg-3ubuntu0.16.04.3
Update to 0.9.10+dfsg-3ubuntu0.16.04.3
tightvnc Ubuntu:16.04:LTS
- Versions
- 1.3.10-0ubuntu2
- 1.3.10-0ubuntu3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
italc Ubuntu:18.04:LTS
- Versions
- 1:3.0.3+dfsg1-1
- 1:3.0.3+dfsg1-2
- 1:3.0.3+dfsg1-2build1
- 1:3.0.3+dfsg1-2ubuntu1
- 1:3.0.3+dfsg1-3
- Affected ranges
- ECOSYSTEM: < 1:3.0.3+dfsg1-3ubuntu0.1
Update to 1:3.0.3+dfsg1-3ubuntu0.1
libvncserver Ubuntu:18.04:LTS
- Versions
- 0.9.11+dfsg-1
- 0.9.11+dfsg-1ubuntu1
- Affected ranges
- ECOSYSTEM: < 0.9.11+dfsg-1ubuntu1.1
Update to 0.9.11+dfsg-1ubuntu1.1
tightvnc Ubuntu:18.04:LTS
- Versions
- 1.3.10-0ubuntu3
- 1.3.10-0ubuntu4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tightvnc Ubuntu:20.04:LTS
- Versions
- 1.3.10-0ubuntu5
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tightvnc Ubuntu:22.04:LTS
- Versions
- 1:1.3.10-3
- 1:1.3.10-5
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tightvnc Ubuntu:24.04:LTS
- Versions
- 1:1.3.10-7
- 1:1.3.10-7build1
- 1:1.3.10-7build2
- 1:1.3.10-8
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tightvnc Ubuntu:25.10
- Versions
- 1:1.3.10-9
- 1:1.3.10-10
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tightvnc Ubuntu:26.10
- Versions
- 1:1.3.10-10build1
- 1:1.3.10-11
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
tightvnc Ubuntu:26.04:LTS
- Versions
- 1:1.3.10-10
- 1:1.3.10-10build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html
- https://github.com/LibVNC/libvncserver/commit/a64c3b37af9a6c8f8009d7516874b8d266b42bae
- https://github.com/LibVNC/libvncserver/commit/e34bcbb759ca5bef85809967a268fdf214c1ad2c
- https://github.com/LibVNC/libvncserver/issues/273
- https://github.com/LibVNC/libvncserver/commit/c5ba3fee85a7ecbbca1df5ffd46d32b92757bc2a
- https://github.com/LibVNC/libvncserver/commit/c2c4b81e6cb3b485fb1ec7ba9e7defeb889f6ba7
- https://usn.ubuntu.com/3877-1/
- https://www.openwall.com/lists/oss-security/2018/12/10/8
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://usn.ubuntu.com/4547-1/
- https://usn.ubuntu.com/4587-1/
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
- https://nvd.nist.gov/vuln/detail/CVE-2018-20748