CVE-2019-11046
published 2019-12-23CVE-2019-11046: 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…
PriorityP431medium5.3CVSS 3.1
AVNACLPRNUINSUCLINAN
EPSS
4.08%
89.4th percentile
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.
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| opensuse | leap | — | — |
| php | php | — | — |
| php | php | 7.2.0 – 7.2.26 | — |
| php | php | 7.3.0 – 7.3.13 | — |
| php5 | php5 | >= 0 < 5.5.9+dfsg-1ubuntu4.29+esm8 | 5.5.9+dfsg-1ubuntu4.29+esm8 |
| php_group | php | >= 7.2.x < 7.2.26 | 7.2.26 |
| php_group | php | >= 7.3.x < 7.3.13 | 7.3.13 |
| php_group | php | >= 7.4.x < 7.4.1 | 7.4.1 |
| tenable | securitycenter | < 5.19.0 | 5.19.0 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
osv5.9MEDIUM
vendor_redhat3.7LOW
vendor_ubuntu3.7LOW
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CISA ICS
Festo Didactic SE MES PC
cisa_ics·2026-01-27·CVSS 7.5
[HIGH] Festo Didactic SE MES PC
ICS Advisory
##
Festo Didactic SE MES PC
Release DateJanuary 27, 2026
Alert CodeICSA-26-027-02
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
View CSAF
## Summary
MES PCs shipped with Windows 10 come pre-installed with XAMPP. XAMPP is a bundle of third-party open-source applications including the Apache HTTP Server, the MariaDB database and more. From time to time, vulnerabilities in these applications are discovered. These are fixed in newer versions of XAMPP by updating the bundled applications. MES PCs shipped with Windows 10 include a copy of XAMPP which contains around 140 such vulnerabilities listed in this advisory. They can be fixed by replacing XAMPP with Festo Didactic's Factory Control Panel application.
The
Ubuntu
PHP vulnerabilities
vendor_ubuntu·2020-01-15·CVSS 3.7
CVE-2019-11045 [LOW] PHP vulnerabilities
Title: PHP vulnerabilities
Summary: Several security issues were fixed in PHP.
It was discovered that PHP incorrectly handled certain files. An attacker
could possibly use this issue to cause a denial of service. This issue only affected
Ubuntu 14.04 ESM, 16.04 LTS, 18.04 LTS, 19.04 and 19.10. (CVE-2019-11045)
It was discovered that PHP incorrectly handled certain inputs. An attacker
could possibly use this issue to expose sensitive information.
(CVE-2019-11046)
It was discovered that PHP incorrectly handled certain images. An attacker
could possibly use this issue to access sensitive information.
(CVE-2019-11047, CVE-2019-11050)
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
php: OOB read in bc_shift_addsub
vendor_redhat·2019-12-16·CVSS 3.7
CVE-2019-11046 [LOW] CWE-125 php: OOB read in bc_shift_addsub
php: OOB read in bc_shift_addsub
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.
Statement: Any version of PHP as shipped with Red Hat Enterprise Linux are not affected. This flaw affected php running only on top of Windows Operating System, the bug itself is related to OS specific isdigit() function implementation.
Package: php (Red Hat Enterprise Linux 5) - Not affected
Package: php53 (Red Hat Enterprise Linux 5) - Not affected
Package: php (Red Hat Enterprise Li
GHSA
GHSA-6c5q-qpjx-9564: In PHP versions 7
ghsa_unreviewed·2022-05-24
CVE-2019-11046 [MEDIUM] CWE-125 GHSA-6c5q-qpjx-9564: In PHP versions 7
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.
OSV
php5, php7.0, php7.2, php7.3 vulnerabilities
osv·2020-01-15·CVSS 5.9
CVE-2019-11045 [MEDIUM] php5, php7.0, php7.2, php7.3 vulnerabilities
php5, php7.0, php7.2, php7.3 vulnerabilities
It was discovered that PHP incorrectly handled certain files. An attacker
could possibly use this issue to cause a denial of service. This issue only affected
Ubuntu 14.04 ESM, 16.04 LTS, 18.04 LTS, 19.04 and 19.10. (CVE-2019-11045)
It was discovered that PHP incorrectly handled certain inputs. An attacker
could possibly use this issue to expose sensitive information.
(CVE-2019-11046)
It was discovered that PHP incorrectly handled certain images. An attacker
could possibly use this issue to access sensitive information.
(CVE-2019-11047, CVE-2019-11050)
OSV
CVE-2019-11046: In PHP versions 7
osv·2019-12-23·CVSS 5.3
CVE-2019-11046 [MEDIUM] CVE-2019-11046: In PHP versions 7
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-11046 php: OOB read in bc_shift_addsub [fedora-all]
bugzilla·2019-12-26·CVSS 3.7
CVE-2019-11046 [LOW] CVE-2019-11046 php: OOB read in bc_shift_addsub [fedora-all]
CVE-2019-11046 php: OOB read in bc_shift_addsub [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. While
Bugzilla
CVE-2019-11046 php: OOB read in bc_shift_addsub
bugzilla·2019-12-26·CVSS 3.7
CVE-2019-11046 [LOW] CVE-2019-11046 php: OOB read in bc_shift_addsub
CVE-2019-11046 php: OOB read in bc_shift_addsub
A vulnerability was found 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, 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.
Reference:
https://bugs.php.net/bug.php?id=78878
Discussion:
Created php tracking bugs for this issue:
Affects: fedora-all [bug 1786568]
---
Statement:
Any version of PHP as shipped with Red Hat Enterprise Linux are not affected. This flaw affected php running only on top of Windows Operating System, the bug itself is related to OS specific isdigit() function i
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00036.htmlhttps://bugs.php.net/bug.php?id=78878https://lists.debian.org/debian-lts-announce/2019/12/msg00034.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/https://seclists.org/bugtraq/2020/Feb/27https://seclists.org/bugtraq/2020/Feb/31https://seclists.org/bugtraq/2021/Jan/3https://security.netapp.com/advisory/ntap-20200103-0002/https://support.f5.com/csp/article/K48866433?utm_source=f5support&%3Butm_medium=RSShttps://usn.ubuntu.com/4239-1/https://www.debian.org/security/2020/dsa-4626https://www.debian.org/security/2020/dsa-4628https://www.tenable.com/security/tns-2021-14http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00036.htmlhttps://bugs.php.net/bug.php?id=78878https://lists.debian.org/debian-lts-announce/2019/12/msg00034.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/https://seclists.org/bugtraq/2020/Feb/27https://seclists.org/bugtraq/2020/Feb/31https://seclists.org/bugtraq/2021/Jan/3https://security.netapp.com/advisory/ntap-20200103-0002/https://support.f5.com/csp/article/K48866433?utm_source=f5support&%3Butm_medium=RSShttps://usn.ubuntu.com/4239-1/https://www.debian.org/security/2020/dsa-4626https://www.debian.org/security/2020/dsa-4628https://www.tenable.com/security/tns-2021-14
2019-12-23
Published