UBUNTU-CVE-2026-31972

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-31972
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-31972
Upstream
Published
2026-03-18T21:16:00Z
Modified
2026-05-20T16:25:19.131889620Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
  • 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
  • Ubuntu - medium
Summary
[none]
Details

SAMtools is a program for reading, manipulating and writing bioinformatics file formats. The mpileup command outputs DNA sequences that have been aligned against a known reference. On each output line it writes the reference position, optionally the reference DNA base at that position (obtained from a separate file) and all of the DNA bases that aligned to that position. As the output is ordered by position, reference data that is no longer needed is discarded once it has been printed out. Under certain conditions the data could be discarded too early, leading to an attempt to read from a pointer to freed memory. This bug may allow information about program state to be leaked. It may also cause a program crash through an attempt to access invalid memory. This bug is fixed in versions 1.21.1 and 1.22. There is no workaround for this issue.

References

Affected packages

Ubuntu:14.04:LTS
samtools

Package

Name
samtools
Purl
pkg:deb/ubuntu/samtools?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.1.19-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "samtools",
            "binary_version": "0.1.19-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json"
Ubuntu:16.04:LTS
samtools

Package

Name
samtools
Purl
pkg:deb/ubuntu/samtools?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.1.19-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "samtools",
            "binary_version": "0.1.19-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json"
Ubuntu:18.04:LTS
samtools

Package

Name
samtools
Purl
pkg:deb/ubuntu/samtools?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.4.1-1build1
1.5-1build1
1.6-3ubuntu1
1.6-4
1.7-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "samtools",
            "binary_version": "1.7-1"
        },
        {
            "binary_name": "samtools-test",
            "binary_version": "1.7-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json"
Ubuntu:20.04:LTS
samtools

Package

Name
samtools
Purl
pkg:deb/ubuntu/samtools?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.9-4
1.9-5
1.9-6
1.9-7
1.10-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "samtools",
            "binary_version": "1.10-3"
        },
        {
            "binary_name": "samtools-test",
            "binary_version": "1.10-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json"
Ubuntu:22.04:LTS
samtools

Package

Name
samtools
Purl
pkg:deb/ubuntu/samtools?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.13-2
1.13-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "samtools",
            "binary_version": "1.13-4"
        },
        {
            "binary_name": "samtools-test",
            "binary_version": "1.13-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json"
Ubuntu:24.04:LTS
samtools

Package

Name
samtools
Purl
pkg:deb/ubuntu/samtools?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.17-1
1.18-1
1.19-1
1.19.2-1
1.19.2-1build1
1.19.2-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "samtools",
            "binary_version": "1.19.2-1build2"
        },
        {
            "binary_name": "samtools-test",
            "binary_version": "1.19.2-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json"
Ubuntu:25.10
samtools

Package

Name
samtools
Purl
pkg:deb/ubuntu/samtools?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.21-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "samtools",
            "binary_version": "1.21-1"
        },
        {
            "binary_name": "samtools-test",
            "binary_version": "1.21-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json"
Ubuntu:26.04:LTS
samtools

Package

Name
samtools
Purl
pkg:deb/ubuntu/samtools?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.21-1
1.22.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "samtools",
            "binary_version": "1.22.1-1"
        },
        {
            "binary_name": "samtools-test",
            "binary_version": "1.22.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31972.json"