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Vigil@nce - glibc: multiple vulnerabilities of Memory Allocator

September 2013 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 memory allocator functions of the glibc.

- Impacted products: Slackware, Unix (platform)
- Severity: 2/4
- Creation date: 11/09/2013

DESCRIPTION OF THE VULNERABILITY

Several vulnerabilities were announced in the glibc.

An attacker can generate an integer overflow in pvalloc(), in order to trigger a denial of service, and possibly to execute code. [severity:2/4; 15855]

An attacker can generate an integer overflow in valloc(), in order to trigger a denial of service, and possibly to execute code. [severity:2/4; 15856]

An attacker can generate an integer overflow in posix_memalign() et memalign(), in order to trigger a denial of service, and possibly to execute code. [severity:2/4; 15857]

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/g...




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