UBUNTU-CVE-2026-17544

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Source
https://ubuntu.com/security/CVE-2026-17544
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-17544.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-17544
Upstream
  • CVE-2026-17544
Downstream
Related
Published
2026-07-30T12:17:00Z
Modified
2026-09-10T16:30:21Z
Severity
  • 8.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU: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

Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9.

References

Affected packages

Ubuntu:26.04:LTS / php8.5

Package

Name
php8.5
Purl
pkg:deb/ubuntu/php8.5?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.5.4-0ubuntu1.3

Affected versions

8.*
8.5.2-0ubuntu1
8.5.4-0ubuntu1
8.5.4-0ubuntu1.1
8.5.4-0ubuntu1.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libapache2-mod-php8.5",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "libphp8.5-embed",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-bcmath",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-bz2",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-cgi",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-cli",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-common",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-curl",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-dba",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-enchant",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-fpm",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-gd",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-gmp",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-interbase",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-intl",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-ldap",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-litespeed",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-mbstring",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-mysql",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-odbc",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-pgsql",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-phpdbg",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-readline",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-snmp",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-soap",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-sqlite3",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-sybase",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-tidy",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-xml",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-xsl",
            "binary_version": "8.5.4-0ubuntu1.3"
        },
        {
            "binary_name": "php8.5-zip",
            "binary_version": "8.5.4-0ubuntu1.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-17544.json"