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CVE-2021-29454

CVE-2021-29454 · Sandbox Escape by math function in smarty

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 8.1 · High · EPSS 1.8% · Fix available

Published
Updated

Stack: system · php

Affected products and versions

  • smarty

    Versions
    • < 3.1.42: Affected
    • >= 4.0.0, < 4.0.2: Affected

    No fix published

  • smarty3 Debian:12

    Affected ranges
    • ECOSYSTEM: < 3.1.45-1

    Update to 3.1.45-1

  • smarty3 Debian:13

    Affected ranges
    • ECOSYSTEM: < 3.1.45-1

    Update to 3.1.45-1

  • smarty3 Debian:14

    Affected ranges
    • ECOSYSTEM: < 3.1.45-1

    Update to 3.1.45-1

  • smarty4 Debian:12

    Affected ranges
    • ECOSYSTEM: < 4.1.1-1

    Update to 4.1.1-1

  • smarty4 Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.1.1-1

    Update to 4.1.1-1

  • smarty4 Debian:14

    Affected ranges
    • ECOSYSTEM: < 4.1.1-1

    Update to 4.1.1-1

  • smarty/smarty Packagist

    Versions
    • v2.6.24
    • v2.6.25
    • v2.6.26
    • v2.6.27
    • v2.6.28
    • v2.6.29
    • v2.6.30
    • v2.6.31
    • v2.6.33
    • v3.1.11
    • v3.1.12
    • v3.1.13
    • v3.1.14
    • v3.1.15
    • v3.1.16
    • v3.1.17
    • v3.1.18
    • v3.1.19
    • v3.1.20
    • v3.1.21
    • v3.1.23
    • v3.1.24
    • v3.1.25
    • v3.1.26
    • v3.1.27
    • v3.1.28
    • v3.1.29
    • v3.1.30
    • v3.1.31
    • v3.1.32
    • v3.1.33
    • v3.1.34
    • v3.1.35
    • v3.1.36
    • v3.1.37
    • v3.1.37.1
    • v3.1.38
    • v3.1.39
    • v3.1.40
    • v3.1.41
    Affected ranges
    • ECOSYSTEM: < 3.1.42

    Update to 3.1.42

  • smarty/smarty Packagist

    Versions
    • v4.0.0
    • v4.0.1
    Affected ranges
    • ECOSYSTEM: ≥ 4.0.0, < 4.0.2

    Update to 4.0.2

  • smarty3 Ubuntu:Pro:16.04:LTS

    Versions
    • 3.1.21-1
    • 3.1.21-1ubuntu1
    Affected ranges
    • ECOSYSTEM: < 3.1.21-1ubuntu1+esm1

    Update to 3.1.21-1ubuntu1+esm1

  • smarty3 Ubuntu:18.04:LTS

    Versions
    • 3.1.31+20161214.1.c7d42e4+selfpack1-2
    • 3.1.31+20161214.1.c7d42e4+selfpack1-3
    Affected ranges
    • ECOSYSTEM: < 3.1.31+20161214.1.c7d42e4+selfpack1-3ubuntu0.1

    Update to 3.1.31+20161214.1.c7d42e4+selfpack1-3ubuntu0.1

  • smarty3 Ubuntu:Pro:20.04:LTS

    Versions
    • 3.1.33+20180830.1.3a78a21f+selfpack1-1
    • 3.1.34+20190228.1.c9f0de05+selfpack1-1
    Affected ranges
    • ECOSYSTEM: < 3.1.34+20190228.1.c9f0de05+selfpack1-1ubuntu0.1~esm1

    Update to 3.1.34+20190228.1.c9f0de05+selfpack1-1ubuntu0.1~esm1

  • smarty3 Ubuntu:22.04:LTS

    Versions
    • 3.1.39-2
    Affected ranges
    • ECOSYSTEM: < 3.1.39-2ubuntu1

    Update to 3.1.39-2ubuntu1

Original sources

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