CVE-2019-11046
LOW severity · CVSS 3.7 · Out-of-bounds read
3.7CVSS LOW
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://bugs.php.net/bug.php?id=78878 ↗
Additional information
- NVD record
- https://bugs.php.net/bug.php?id=78878Patch
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00036.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00034.htmlAdvisory
- https://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/27Advisory
- https://seclists.org/bugtraq/2020/Feb/31Advisory
- https://seclists.org/bugtraq/2021/Jan/3Advisory