High severity · published Dec 19, 2018
CVE-2018-6307
LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code…
8.1
CVSS
26.5%
EPSS
No
On KEV
Description
LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)26.5% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
LI
Libvncserver · Libvnc Project
before 0.9.12 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6307
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6307
Third Party Advisory
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/
Mailing List
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
Third Party Advisory
https://usn.ubuntu.com/3877-1/
Third Party Advisory
https://www.debian.org/security/2019/dsa-4383
Third Party Advisory
https://github.com/LibVNC/libvncserver/issues/241
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