UBUNTU-CVE-2020-29129

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Source
https://ubuntu.com/security/CVE-2020-29129
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29129.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-29129
Upstream
Downstream
Related
Published
2020-11-26T20:15:00Z
Modified
2025-09-08T16:46:29Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.

References

Affected packages

Ubuntu:20.04:LTS / libslirp

Package

Name
libslirp
Purl
pkg:deb/ubuntu/libslirp@4.1.0-2ubuntu2.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.1.0-2ubuntu2.2

Affected versions

4.*

4.0.0-1
4.0.0-2
4.1.0-1
4.1.0-2
4.1.0-2ubuntu1
4.1.0-2ubuntu2
4.1.0-2ubuntu2.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "4.1.0-2ubuntu2.2",
            "binary_name": "libslirp-dev"
        },
        {
            "binary_version": "4.1.0-2ubuntu2.2",
            "binary_name": "libslirp0"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29129.json"