USN-6409-1

It was discovered that the GNU C Library incorrectly handled the GLIBC_TUNABLES environment variable. An attacker could possibly use this issue to perform a privilege escalation attack. (CVE-2023-4911)

It was discovered that the GNU C Library incorrectly handled certain DNS responses when the system was configured in no-aaaa mode. A remote attacker could possibly use this issue to cause the GNU C Library to crash, resulting in a denial of service. This issue only affected Ubuntu 23.04. (CVE-2023-4527)

References

Affected packages

Ubuntu:22.04:LTS / glibc

Package

Name: glibc
Purl: pkg:deb/ubuntu/glibc@2.35-0ubuntu3.4?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.35-0ubuntu3.4

Affected versions

2.*

2.34-0ubuntu3

2.35-0ubuntu1

2.35-0ubuntu3

2.35-0ubuntu3.1

2.35-0ubuntu3.3

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "glibc-source"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc-bin"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc-dev-bin"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc-devtools"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-amd64"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-dev"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-dev-amd64"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-dev-i386"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-dev-s390"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-dev-x32"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-i386"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-prof"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-s390"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "libc6-x32"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "locales"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "locales-all"
        },
        {
            "binary_version": "2.35-0ubuntu3.4",
            "binary_name": "nscd"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:22.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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": "CVSS_V3"
                },
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2023-4911"
        }
    ]
}