CVE-2018-6307 — Use After Free in Project Libvncserver

CWE-416 — Use After Free10 documents8 sources
Severity
8.1HIGHNVD
EPSS
9.5%
top 7.17%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Libvncserver Project LibvncserverLibvnc Project LibvncserverCanonical Ubuntu Linux+1 more
Timeline
PublishedDec 19
Latest updateMay 13

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:HExploitability: 2.2 | Impact: 5.9

Affected Packages2 packages

▶Debianlibvncserver_project/libvncserver< 0.9.11+dfsg-1.2+3

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 14.04, 16.04, 18.04, 18.10

🔴Vulnerability Details

3
GHSA
GHSA-862p-2jpg-8gg4: LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension tha↗2022-05-13
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OSV
CVE-2018-6307: LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension tha↗2018-12-19
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CVEList
CVE-2018-6307: LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension tha↗2018-12-19
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📋Vendor Advisories

3
Ubuntu
LibVNCServer vulnerabilities↗2019-01-31
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Red Hat
libvncserver: Use-after-free in file transfer extension server code allows for potential code execution↗2018-12-19
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Debian
CVE-2018-6307: libvncserver - LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-...↗2018
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💬Community

3
Bugzilla
CVE-2018-6307 libvncserver: Use-after-free in file transfer extension server code allows for potential code execution↗2018-12-20
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Bugzilla
CVE-2018-6307 libvncserver: Use-after-free in file transfer extension server code allows for potential code execution [epel-7]↗2018-12-20
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Bugzilla
CVE-2018-6307 libvncserver: Use-after-free in file transfer extension server code allows for potential code execution [fedora-all]↗2018-12-20
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CVE-2018-6307 — Use After Free in Project Libvncserver | cvebase