CVE-2018-20022 LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and can....
HighCVSS 7.5
EPSS 2.9%
- Published
- Updated
- Exploit status
- No public exploit known
Description
LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and can be abuse for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and in bypassing ASLR
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/libvncserver(Debian:12) | < 0.9.11+dfsg-1.2 | 0.9.11+dfsg-1.2 |
| debian/libvncserver(Debian:13) | < 0.9.11+dfsg-1.2 | 0.9.11+dfsg-1.2 |
| debian/libvncserver(Debian:14) | < 0.9.11+dfsg-1.2 | 0.9.11+dfsg-1.2 |
| debian/ssvnc(Debian:12) | < 1.0.29-5 | 1.0.29-5 |
| debian/ssvnc(Debian:13) | < 1.0.29-5 | 1.0.29-5 |
| debian/ssvnc(Debian:14) | < 1.0.29-5 | 1.0.29-5 |
| debian/tightvnc(Debian:12) | < 1:1.3.9-9.1 | 1:1.3.9-9.1 |
| debian/tightvnc(Debian:13) | < 1:1.3.9-9.1 | 1:1.3.9-9.1 |
| debian/tightvnc(Debian:14) | < 1:1.3.9-9.1 | 1:1.3.9-9.1 |
| debian/veyon(Debian:12) | < 4.1.4+repack1-1 | 4.1.4+repack1-1 |
| debian/veyon(Debian:13) | < 4.1.4+repack1-1 | 4.1.4+repack1-1 |
| libvnc project libvncserver | < 0.9.12 | 0.9.12 |
| debian linux | = 8.0 | No fix listed |
| debian linux | = 9.0 | No fix listed |
| Canonical Ubuntu Linux | = 14.04 | No fix listed |
| Canonical Ubuntu Linux | = 16.04 | No fix listed |
| Canonical Ubuntu Linux | = 18.04 | No fix listed |
| Canonical Ubuntu Linux | = 18.10 | No fix listed |
| ubuntu/tightvnc(Ubuntu:24.04) | All versions | No fix listed |
| ubuntu/tightvnc(Ubuntu:26.04) | All versions | No fix listed |
| ubuntu/tightvnc(Ubuntu:26.10) | All versions | No fix listed |
| ubuntu/tightvnc(Ubuntu:22.04) | All versions | No fix listed |
References
- Ubuntu CVE tracker vendor-advisory
- USN-3877-1 vendor-advisory
- USN-4547-1 vendor-advisory
- USN-4547-2 vendor-advisory
- USN-4587-1 vendor-advisory
- www.cve.org
- Debian Security Tracker CVE-2018-20022 vendor-advisory
- ics-cert.kaspersky.com third-party-advisory
- [debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update mailing-list third-party-advisory
- [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update mailing-list
- [debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update mailing-list
- [debian-lts-announce] 20191221 [SECURITY] [DLA 2045-1] tightvnc security update mailing-list
- GLSA-201908-05 vendor-advisory
- GLSA-202006-06 vendor-advisory
- USN-3877-1 third-party-advisory vendor-advisory
- USN-4547-1 vendor-advisory
- USN-4547-2 vendor-advisory
- USN-4587-1 vendor-advisory
- DSA-4383 third-party-advisory vendor-advisory
- bugs.debian.org issue-tracking
- bugs.debian.org issue-tracking