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CVE-2021-29454

Status Candidate

Overview

Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch.

Related Files

Gentoo Linux Security Advisory 202209-09
Posted Sep 26, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202209-9 - Multiple vulnerabilities have been found in Smarty, the worst of which could result in remote code execution. Versions less than 4.2.1 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2018-25047, CVE-2021-21408, CVE-2021-29454, CVE-2022-29221
SHA-256 | 8a9753a3318c6302ef6528cd85e6f858a3e8e25c2174e9c1bdaf58ea02e08e97
Debian Security Advisory 5151-1
Posted May 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5151-1 - Several security vulnerabilities have been discovered in smarty3, the compiling PHP template engine. Template authors are able to run restricted static php methods or even arbitrary PHP code by crafting a malicious math string or by choosing an invalid {block} or {include} file name. If a math string was passed through as user provided data to the math function, remote users were able to run arbitrary PHP code as well.

tags | advisory, remote, arbitrary, php, vulnerability
systems | linux, debian
advisories | CVE-2021-21408, CVE-2021-26119, CVE-2021-26120, CVE-2021-29454, CVE-2022-29221
SHA-256 | 00378c9d45f203438ba46e8abbade7d4910a9331f6e4759dd22f7f3cc948f369
Ubuntu Security Notice USN-5348-1
Posted Mar 28, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5348-1 - David Gnedt and Thomas Konrad discovered that Smarty was incorrectly sanitizing the paths present in the templates. An attacker could possibly use this use to read arbitrary files when controlling the executed template. It was discovered that Smarty was incorrectly sanitizing the paths present in the templates. An attacker could possibly use this use to read arbitrary files when controlling the executed template.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-13982, CVE-2018-16831, CVE-2021-21408, CVE-2021-26119, CVE-2021-26120, CVE-2021-29454
SHA-256 | 0772a4f586431a77ce7e420bfb608884c2576b38b6bef725c3a3b511a53168bd
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