Vulnerability · Published Jun 17, 2020 · Assigned by mitre
CVE-2020-14399
High 7.5
In plain English
A high-severity security flaw in the libvncserver package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.8% (higher than 87% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.8%top 13.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14399 |
| Alpine:v3.21 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14399 |
| Alpine:v3.22 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14399 |
| Alpine:v3.23 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14399 |
| Alpine:v3.24 | libvncserver | 0.9.13-r0 | ALPINE-CVE-2020-14399 |
| Debian:12 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14399 |
| Debian:13 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14399 |
| Debian:14 | libvncserver | 0.9.13+dfsg-1 | DEBIAN-CVE-2020-14399 |
Affected products (as reported)
References
- https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13 x_refsource_MISC
- https://github.com/LibVNC/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a618174d3c2d x_refsource_MISC
- [debian-lts-announce] 20200630 [SECURITY] [DLA 2264-1] libvncserver security update mailing-list, x_refsource_MLIST
- openSUSE-SU-2020:0988 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:1025 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:1056 vendor-advisory, x_refsource_SUSE
- USN-4434-1 vendor-advisory, x_refsource_UBUNTU
- https://bugzilla.redhat.com/show_bug.cgi?id=1860354 x_refsource_MISC
- [debian-lts-announce] 20200828 [SECURITY] [DLA 2347-1] libvncserver security update mailing-list, x_refsource_MLIST