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 execution.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
KasperskyCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 92%
VendorProductVersion
libvnc_projectlibvncserver
𝑥
< 0.9.12
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
18.10
debiandebian_linux
8.0
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libvncserver
bullseye
0.9.13+dfsg-2+deb11u1
fixed
sid
0.9.14+dfsg-1
fixed
trixie
0.9.14+dfsg-1
fixed
bookworm
0.9.14+dfsg-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libvncserver
disco
not-affected
cosmic
Fixed 0.9.11+dfsg-1.1ubuntu0.1
released
bionic
Fixed 0.9.11+dfsg-1ubuntu1.1
released
xenial
Fixed 0.9.10+dfsg-3ubuntu0.16.04.3
released
trusty
Fixed 0.9.9+dfsg-1ubuntu1.4
released
x11vnc
disco
not-affected
cosmic
ignored
bionic
not-affected
xenial
not-affected
trusty
not-affected
Common Weakness Enumeration
References
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://usn.ubuntu.com/3877-1/
https://www.debian.org/security/2019/dsa-4383
https://github.com/LibVNC/libvncserver/issues/241
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://usn.ubuntu.com/3877-1/
https://www.debian.org/security/2019/dsa-4383