Out-of-bounds Write Affecting libvncserver package, versions <0:0.9.9-13.amzn2
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-AMZN2-LIBVNCSERVER-1668846
- published27 Sept 2021
- disclosed19 Dec 2018
Introduced: 19 Dec 2018
CVE-2018-15127 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2 libvncserver to version 0:0.9.9-13.amzn2 or higher.
This issue was patched in ALAS2-2019-1161.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libvncserver package and not the libvncserver package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 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
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=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/