USN-6407-2

USN-6407-1 fixed several vulnerabilities in libx11. This update provides the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

Gregory James Duck discovered that libx11 incorrectly handled certain keyboard symbols. If a user were tricked into connecting to a malicious X server, a remote attacker could use this issue to cause libx11 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-43785)

Yair Mizrahi discovered that libx11 incorrectly handled certain malformed XPM image files. If a user were tricked into opening a specially crafted XPM image file, a remote attacker could possibly use this issue to consume memory, leading to a denial of service. (CVE-2023-43786)

Yair Mizrahi discovered that libx11 incorrectly handled certain malformed XPM image files. If a user were tricked into opening a specially crafted XPM image file, a remote attacker could use this issue to cause libx11 to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2023-43787)

References

Affected packages

Ubuntu:Pro:14.04:LTS / libx11

Package

Name: libx11
Purl: pkg:deb/ubuntu/libx11@2:1.6.2-1ubuntu2.1+esm5?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2:1.6.2-1ubuntu2.1+esm5

Affected versions

2:1.*

2:1.6.1-1ubuntu1

2:1.6.1-1ubuntu2

2:1.6.2-1ubuntu1

2:1.6.2-1ubuntu2

2:1.6.2-1ubuntu2.1

2:1.6.2-1ubuntu2.1+esm1

2:1.6.2-1ubuntu2.1+esm2

2:1.6.2-1ubuntu2.1+esm3

2:1.6.2-1ubuntu2.1+esm4

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libx11-6",
            "binary_version": "2:1.6.2-1ubuntu2.1+esm5"
        },
        {
            "binary_name": "libx11-data",
            "binary_version": "2:1.6.2-1ubuntu2.1+esm5"
        },
        {
            "binary_name": "libx11-dev",
            "binary_version": "2:1.6.2-1ubuntu2.1+esm5"
        },
        {
            "binary_name": "libx11-xcb-dev",
            "binary_version": "2:1.6.2-1ubuntu2.1+esm5"
        },
        {
            "binary_name": "libx11-xcb1",
            "binary_version": "2:1.6.2-1ubuntu2.1+esm5"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-43785",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-43786",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-43787",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}

Ubuntu:Pro:16.04:LTS / libx11

Package

Name: libx11
Purl: pkg:deb/ubuntu/libx11@2:1.6.3-1ubuntu2.2+esm4?arch=source&distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2:1.6.3-1ubuntu2.2+esm4

Affected versions

2:1.*

2:1.6.3-1ubuntu2

2:1.6.3-1ubuntu2.1

2:1.6.3-1ubuntu2.2

2:1.6.3-1ubuntu2.2+esm1

2:1.6.3-1ubuntu2.2+esm2

2:1.6.3-1ubuntu2.2+esm3

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libx11-6",
            "binary_version": "2:1.6.3-1ubuntu2.2+esm4"
        },
        {
            "binary_name": "libx11-data",
            "binary_version": "2:1.6.3-1ubuntu2.2+esm4"
        },
        {
            "binary_name": "libx11-dev",
            "binary_version": "2:1.6.3-1ubuntu2.2+esm4"
        },
        {
            "binary_name": "libx11-xcb-dev",
            "binary_version": "2:1.6.3-1ubuntu2.2+esm4"
        },
        {
            "binary_name": "libx11-xcb1",
            "binary_version": "2:1.6.3-1ubuntu2.2+esm4"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-43785",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-43786",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-43787",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}

Ubuntu:Pro:18.04:LTS / libx11

Package

Name: libx11
Purl: pkg:deb/ubuntu/libx11@2:1.6.4-3ubuntu0.4+esm2?arch=source&distro=esm-infra/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2:1.6.4-3ubuntu0.4+esm2

Affected versions

2:1.*

2:1.6.4-3

2:1.6.4-3ubuntu0.1

2:1.6.4-3ubuntu0.2

2:1.6.4-3ubuntu0.3

2:1.6.4-3ubuntu0.4

2:1.6.4-3ubuntu0.4+esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libx11-6",
            "binary_version": "2:1.6.4-3ubuntu0.4+esm2"
        },
        {
            "binary_name": "libx11-data",
            "binary_version": "2:1.6.4-3ubuntu0.4+esm2"
        },
        {
            "binary_name": "libx11-dev",
            "binary_version": "2:1.6.4-3ubuntu0.4+esm2"
        },
        {
            "binary_name": "libx11-xcb-dev",
            "binary_version": "2:1.6.4-3ubuntu0.4+esm2"
        },
        {
            "binary_name": "libx11-xcb1",
            "binary_version": "2:1.6.4-3ubuntu0.4+esm2"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-43785",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-43786",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-43787",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}