Cloudanix VulnDB

CVE-2017-11109

High · 7.8

CVSS

7.8

EPSS

1.1%

Published

Jul 8, 2017

CISA due date

—

Cloudanix analysis

Monitor only SSVC: Track

A flaw in a text editor could let someone crash the program or run unwanted code simply by getting a user to open a specially prepared file.

Exploitation
Requires User Interaction
Attacker needs
User Interaction
Complexity
Low
Impact
Denial Of Service
Component
Application
Class
Use After Free
Remediation
Upgrade
Effort
Medium
Patch risk
Low

What it actually does

Use-after-free condition triggered when processing a crafted source file, resulting in invalid memory access that can cause a crash or permit further memory corruption.

Why it matters to the business

Attackers could disrupt operations by crashing editor instances or, in limited cases, achieve code execution on systems that process untrusted scripts, increasing risk for environments relying on affected packages.

How an attack unfolds

An attacker creates a malicious source file that exploits the use-after-free when opened with the vulnerable editor; the file is delivered via email, download, or shared storage and opened by a user or automated process.

How to fix it

Upgrade hubble-ui, hubble-ui-backend (Chainguard and Wolfi variants) to version 0.13.0-r1 or later; avoid opening untrusted source files until patches are applied.

How to confirm the fix worked

Verify package versions match or exceed the listed fixed releases; attempt reproduction with known proof-of-concept files in a controlled environment to confirm absence of the crash condition.

Typical attack path

  1. Craft a source file containing structures that trigger the use-after-free on parse
  2. Deliver the file to the target environment
  3. Induce the victim to open the file using the affected editor
  4. Trigger invalid free and subsequent memory operations for denial of service or code execution

How to detect it

Review process execution logs for editor invocations on unexpected files; inspect system or application logs for segmentation faults or invalid free errors around the time of file access.

What your security team should do

  • Apply the 0.13.0-r1 updates to all listed packages immediately
  • Restrict opening of untrusted source files in affected editor instances
  • Monitor for new exploit maturity indicators given the 2017 disclosure date

The record

Vim 8.0 allows attackers to cause a denial of service (invalid free) or possibly have unspecified other impact via a crafted source (aka -S) file. NOTE: there might be a limited number of scenarios in which this has security relevance.

Affected packages

Ecosystem Package Introduced Fixed
Debian:10 vim 0 2:8.0.0197-5
Debian:11 vim 0 2:8.0.0197-5
Debian:12 vim 0 2:8.0.0197-5
Debian:13 vim 0 2:8.0.0197-5
Debian:7 vim 0 2:7.3.547-7+deb7u4
Debian:8 vim 0 2:7.4.488-7+deb8u4
Ubuntu:14.04:LTS vim 0 2:7.4.052-1ubuntu3.1+esm1
Ubuntu:16.04:LTS vim 0 2:7.4.1689-3ubuntu1.4
Ubuntu:18.04:LTS vim 0 2:8.0.1144-1ubuntu1
Ubuntu:18.04:LTS vim 0 2:8.0.1453-1ubuntu1.3
Ubuntu:Pro:14.04:LTS vim 0 2:7.4.052-1ubuntu3.1+esm1

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