UBUNTU-CVE-2019-19333

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Source
https://ubuntu.com/security/CVE-2019-19333
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-19333.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-19333
Upstream
Withdrawn
2025-07-18T16:45:28Z
Published
2019-12-06T16:15:00Z
Modified
2025-07-16T08:14:34.145436Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.1 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type "bits". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of service or possibly gain code execution.

References

Affected packages

Ubuntu:20.04:LTS / libyang

Package

Name
libyang
Purl
pkg:deb/ubuntu/libyang@0.16.105-2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.16.105-2

Affected versions

0.*

0.16.105-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libyang-cpp-dev",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "libyang-cpp0.16",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "libyang-cpp0.16-dbgsym",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "libyang-dev",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "libyang0.16",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "libyang0.16-dbgsym",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "python3-yang",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "python3-yang-dbg",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "yang-tools",
            "binary_version": "0.16.105-2"
        },
        {
            "binary_name": "yang-tools-dbgsym",
            "binary_version": "0.16.105-2"
        }
    ]
}