GitHub Advisoryadvisory · Packagist
GHSA-29gp-2c3m-3j6m Sandbox Escape by math function in smarty
HIGH
Official page ↗
- Aliases
- CVE-2021-29454
- Ecosystem
- Packagist
- Packages
- smarty/smarty
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-74
- Reviewed
- 2022-01-10
Affected packages
• Packagist smarty/smarty: < 3.1.42 → fixed in 3.1.42
• Packagist smarty/smarty: >= 4.0.0, < 4.0.2 → fixed in 4.0.2
Description
Impact
Template authors could run arbitrary PHP code by crafting a malicious math string.
If a math string is passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string.
Patches
Please upgrade to 4.0.2 or 3.1.42 or higher.
References
See documentation on Math function.
For more information
If you have any questions or comments about this advisory please open an issue in the Smarty repo
Related
Alias · CVE (1)
- CVE-2021-29454 Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. vulnerability
Weakness · CWE (1)
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness
References
- https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m web
- https://nvd.nist.gov/vuln/detail/CVE-2021-29454 advisory
- https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71 web
- https://github.com/FriendsOfPHP/security-advisories/blob/master/smarty/smarty/CVE-2021-29454.yaml web
- https://github.com/smarty-php/smarty package
- https://github.com/smarty-php/smarty/releases/tag/v3.1.42 web
- https://github.com/smarty-php/smarty/releases/tag/v4.0.2 web
- https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html web
- https://lists.fedoraproject.org/archives/list/[email protected]/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ web
- https://lists.fedoraproject.org/archives/list/[email protected]/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI web
- https://packagist.org/packages/smarty/smarty web
- https://security.gentoo.org/glsa/202209-09 web
- https://www.debian.org/security/2022/dsa-5151 web
- https://www.smarty.net/docs/en/language.function.math.tpl web