USN-8939-1

It was discovered that libXtst did not properly handle certain RECORD replies from the X server. A malicious X server could possibly use this issue to cause libXtst clients to crash, resulting in a denial of service. (CVE-2026-94286)

Tobias Stoeckmann discovered that libXtst did not properly handle certain memory operations. A malicious X server could possibly use this issue to cause libXtst to access memory out of bounds, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-7951)

Tobias Stoeckmann discovered that libXtst did not properly handle certain replies from the X server. A malicious X server could possibly use this issue to cause libXtst to enter an infinite loop, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-7952)

References

Affected packages

Ubuntu:22.04:LTS

libxtst

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2:1.2.3-1ubuntu0.22.04.1

Affected versions

2:1.*

2:1.2.3-1build2

2:1.2.3-1build3

2:1.2.3-1build4

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.3-1ubuntu0.22.04.1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [],
    "ecosystem":  "Ubuntu:22.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8939-1.json"

Ubuntu:24.04:LTS

libxtst

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2:1.2.3-1.1ubuntu0.1

Affected versions

2:1.*

2:1.2.3-1.1

2:1.2.3-1.1build1

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.3-1.1ubuntu0.1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [],
    "ecosystem":  "Ubuntu:24.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8939-1.json"

Ubuntu:26.04:LTS

libxtst

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2:1.2.5-1ubuntu0.1

Affected versions

2:1.*

2:1.2.5-1

2:1.2.5-1build1

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.5-1ubuntu0.1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [],
    "ecosystem":  "Ubuntu:26.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8939-1.json"

Ubuntu:26.10

libxtst

Package

Name: libxtst
Purl: pkg:deb/ubuntu/libxtst?arch=source&distro=stonking

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2:1.2.5-1ubuntu1

Affected versions

2:1.*

2:1.2.5-1build1

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.5-1ubuntu1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [],
    "ecosystem":  "Ubuntu:26.10"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8939-1.json"

Ubuntu:Pro:16.04:LTS

libxtst

Package

Name: libxtst
Purl: pkg:deb/ubuntu/libxtst?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2:1.2.2-1ubuntu0.1~esm1

Affected versions

2:1.*

2:1.2.2-1

Ecosystem specific

{
    "availability":  "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.2-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [],
    "ecosystem":  "Ubuntu:Pro:16.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8939-1.json"

Ubuntu:Pro:18.04:LTS

libxtst

Package

Name: libxtst
Purl: pkg:deb/ubuntu/libxtst?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2:1.2.3-1ubuntu0.18.04.1~esm1

Affected versions

2:1.*

2:1.2.3-1

Ecosystem specific

{
    "availability":  "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.3-1ubuntu0.18.04.1~esm1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [],
    "ecosystem":  "Ubuntu:Pro:18.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8939-1.json"

Ubuntu:Pro:20.04:LTS

libxtst

Package

Name: libxtst
Purl: pkg:deb/ubuntu/libxtst?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2:1.2.3-1ubuntu0.20.04.1~esm1

Affected versions

2:1.*

2:1.2.3-1

Ecosystem specific

{
    "availability":  "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.3-1ubuntu0.20.04.1~esm1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [],
    "ecosystem":  "Ubuntu:Pro:20.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8939-1.json"