VDB
CVE-2018-21247
CVE-2018-21247
PUBLISHED
An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) in the libvncclient/rfbproto.c ConnectToRFBRepeater function.
EPSS 1.48% · 81.3th percentile
Risk Scores
EPSS Score
1.48%
81.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:14.04:LTS | x11vnc | 0.9.13-1.1, 0 |
| Ubuntu:Pro:18.04:LTS | x11vnc | 0, 0.9.13-3ubuntu0.1~esm1, 0.9.13-3 |
| Ubuntu:20.04:LTS | veyon | 4.3.1+repack1-2build2, 0, 4.2.4+repack1-2 |
| Ubuntu:24.04:LTS | veyon | 4.7.5+repack1-1build2, 4.7.5+repack1-1ubuntu3, 4.7.5+repack1-1ubuntu4 |
| Ubuntu:Pro:20.04:LTS | x11vnc | 0.9.16-3ubuntu0.1~esm1, 0, 0.9.13-6 |
| Ubuntu:25.10 | veyon | *, 4.9.7+repack1-1, 4.7.5+repack1-1ubuntu6 |
| Ubuntu:16.04:LTS | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.6, 0, 0.9.10+dfsg-3 |
| Ubuntu:Pro:16.04:LTS | x11vnc | *, 0.9.13-1.2build1, 0 |
| Ubuntu:22.04:LTS | veyon | 4.5.3+repack1-1build1, 4.5.3+repack1-1build2, 0 |
| Ubuntu:18.04:LTS | libvncserver | 0.9.11+dfsg-1, 0, 0.9.11+dfsg-1ubuntu1.4 |
| Ubuntu:20.04:LTS | libvncserver | 0.9.12+dfsg-3ubuntu3, 0.9.12+dfsg-6, 0.9.12+dfsg-9 |
Timeline
- Jun 17, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2018-21247 third-party-advisory
- https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2018-21247 third-party-advisory