UBUNTU-CVE-2018-7731

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Source
https://ubuntu.com/security/CVE-2018-7731
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-7731.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2018-7731
Upstream
Downstream
Related
Withdrawn
2025-07-18T16:44:32Z
Published
2018-03-06T00:00:00Z
Modified
2025-07-16T08:23:14.772033Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FormatSupport/WEBP_Support.cpp does not check whether a bitstream has a NULL value, leading to a NULL pointer dereference in the WEBP::VP8XChunk class.

References

Affected packages

Ubuntu:18.04:LTS / exempi

Package

Name
exempi
Purl
pkg:deb/ubuntu/exempi@2.4.5-2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.5-2

Affected versions

2.*

2.4.3-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "exempi",
            "binary_version": "2.4.5-2"
        },
        {
            "binary_name": "exempi-dbgsym",
            "binary_version": "2.4.5-2"
        },
        {
            "binary_name": "libexempi-dev",
            "binary_version": "2.4.5-2"
        },
        {
            "binary_name": "libexempi3",
            "binary_version": "2.4.5-2"
        },
        {
            "binary_name": "libexempi3-dbgsym",
            "binary_version": "2.4.5-2"
        }
    ],
    "availability": "No subscription required"
}