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Files from Szymon Janusz

First Active2021-10-07
Last Active2021-10-07
Netfilter x_tables Heap Out-Of-Bounds Write / Privilege Escalation
Posted Oct 7, 2021
Authored by Brendan Coles, Andy Nguyen, Szymon Janusz | Site metasploit.com

A heap out-of-bounds write affecting Linux since version 2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a denial of service (via heap memory corruption) through user name space. Kernels up to and including 5.11 are vulnerable.

tags | exploit, denial of service, kernel
systems | linux
advisories | CVE-2021-22555
SHA-256 | 7caefc49d920cc0b0d58e9ad762b7ffbd02e62e1e3225217c8586f8867ea42e8
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