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Vigil@nce - glibc: two vulnerabilities of strxfrm

March 2015 by Vigil@nce

This bulletin was written by Vigil@nce : http://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An attacker can use several vulnerabilities of strxfrm of glibc.

Impacted products: Unix (platform)

Severity: 2/4

Creation date: 13/02/2015

DESCRIPTION OF THE VULNERABILITY

The strxfrm() function transforms a string using the locale. Two
vulnerabilities were announced in strxfrm() of the glibc.

An attacker can generate an integer overflow during the memory
size computation, in order to trigger a denial of service, and
possibly to execute code. [severity:2/4]

An attacker can generate a stack overflow via alloca(), in order
to trigger a denial of service. [severity:1/4]

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/glibc-two-vulnerabilities-of-strxfrm-16192


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