Heap-based Buffer Overflow Affecting libvncserver package, versions <0:0.9.9-13.el7_6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-LIBVNCSERVER-4907073
- published26 Jul 2021
- disclosed19 Dec 2018
Introduced: 19 Dec 2018
CVE-2018-15127 (opens in a new tab)How to fix?
Upgrade RHEL:7 libvncserver to version 0:0.9.9-13.el7_6 or higher.
This issue was patched in RHSA-2019:0059.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libvncserver package and not the libvncserver package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
LibVNC before commit 502821828ed00b4a2c4bef90683d0fd88ce495de contains heap out-of-bound write vulnerability in server code of file transfer extension that can result remote code execution
References
- https://access.redhat.com/security/cve/CVE-2018-15127
- https://www.debian.org/security/2019/dsa-4383
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-028-libvnc-heap-out-of-bound-write/
- https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://access.redhat.com/errata/RHSA-2019:0059
- https://usn.ubuntu.com/3877-1/
- https://usn.ubuntu.com/4547-1/
- https://usn.ubuntu.com/4587-1/