CVE-2017-15124 (GCVE-0-2017-15124)

Vulnerability from cvelistv5 – Published: 2018-01-09 21:00 – Updated: 2024-08-05 19:50
VLAI
Summary
VNC server implementation in Quick Emulator (QEMU) 2.11.0 and older was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A malicious remote VNC client could use this flaw to cause DoS to the server host.
Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1085 records in the last 180 days details
References
URL Tags
http://www.securityfocus.com/bid/102295 vdb-entryx_refsource_BID
https://bugzilla.redhat.com/show_bug.cgi?id=1525195 x_refsource_CONFIRM
https://www.debian.org/security/2018/dsa-4213 vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2018:0816 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:1104 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:1113 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3575-1/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:3062 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
QEMU Qemu Affected: 2.11.0 and older
guessed Create a notification for this product.
Date Public
2017-12-18 00:00
Show details on NVD website
To clipboard 

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}



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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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