CVE-2019-11046
Buffer underflow in bc_shift_addsub
At a glance Severity LOW 3.7 EPSS EPSS 4.12 % · percentile 91 (2026-10-27) State PUBLISHED Published 2019-12-23 Updated 2024-09-16 Assigner php NVD status Modified Description In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can read to disclosure of the content of some memory locations.
Scores Version Score Vector Scored by CVSS 3.1 LOW 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N php CVSS 3.1 LOW 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N NVD · security@php.net (Secondary) CVSS 3.1 MEDIUM 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N NVD · nvd@nist.gov (Primary) CVSS 2.0 MEDIUM 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N NVD · nvd@nist.gov (Primary)
Weaknesses (CWE)
European references
CERT-FR advisories
Affected configurations (NVD CPE) cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 7.2.0 ≤ 7.2.26cpe:2.3:a:php:php:*:*:*:*:*:*:*:* ≥ 7.3.0 ≤ 7.3.13cpe:2.3:a:php:php:7.4.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*cpe:2.3:a:tenable:security_center:*:*:*:*:*:*:*:* < 5.19.0Affected products Product Versions PHP Group · PHP affected 7.2.x < 7.2.26 ; affected 7.3.x < 7.3.13 ; affected 7.4.x < 7.4.1
References
Sources
