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Vulnerability of Linux kernel: integer overflow via ext4_es_cache_extent

Synthesis of the vulnerability 

An attacker can trigger an integer overflow via ext4_es_cache_extent() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Vulnerable products: Debian, Linux, openSUSE Leap, SIMATIC, SUSE Linux Enterprise Desktop, SLES.
Severity of this weakness: 2/4.
Creation date: 31/03/2021.
Références of this bulletin: 1173485, CERTFR-2021-AVI-264, CERTFR-2021-AVI-278, CERTFR-2021-AVI-284, CVE-2021-3428, DLA-2610-1, openSUSE-SU-2021:0532-1, SSB-439005, SUSE-SU-2021:1175-1, SUSE-SU-2021:1176-1, SUSE-SU-2021:1177-1, SUSE-SU-2021:1210-1, SUSE-SU-2021:1211-1, SUSE-SU-2021:1238-1, SUSE-SU-2021:1573-1, VIGILANCE-VUL-34980.

Description of the vulnerability 

An attacker can trigger an integer overflow via ext4_es_cache_extent() of the Li...
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This vulnerability alert impacts software or systems such as Debian, Linux, openSUSE Leap, SIMATIC, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this computer weakness alert is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this computer vulnerability.

Solutions for this threat 

This vulnerability fix will be public soon.
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