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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.3291
        FortiSandbox - Buffer overflow due to use of size of source
                       buffer in libc safe functions
                              6 October 2021

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           FortiSandbox
Publisher:         FortiGuard
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-26105  

Original Bulletin: 
   https://www.fortiguard.com/psirt/FG-IR-20-234

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FortiSandbox - Buffer overflow due to use of size of source buffer in libc safe functions

IR Number    : FG-IR-20-234
Date         : Oct 5, 2021
Risk         : 3/5
CVSSv3 Score : 6.4
CVE ID       : CVE-2021-26105
Affected Products: FortiSandbox: 3.2.2, 3.1.4

Summary

A stack-based buffer overflow vulnerability (CWE-121) in the profile parser of
FortiSandbox may allow an authenticated attacker to potentially execute
unauthorized code or commands via specifically crafted HTTP requests.

Affected Products

FortiSandbox 4.0.0.
FortiSandbox 3.2.2 and below.
FortiSandbox 3.1.4 and below.

Solutions

Upgrade to FortiSandbox 4.0.1 or above.

Upgrade to FortiSandbox 3.2.3 or above.

Acknowledgement

Internally discovered and reported by Giuseppe Cocomazzi of Fortinet Product
Security team.

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