oss-sec mailing list archives
Re: CVE Request: Glibc Pointer guarding weakness
From: Florian Weimer <fweimer () redhat com>
Date: Thu, 15 Oct 2015 10:08:26 +0200
On 09/05/2015 06:49 PM, Hector Marco-Gisbert wrote:
Hello, A weakness in the dynamic loader have been found, Glibc prior to 2.22.90 are affected. The issue is that the LD_POINTER_GUARD in the environment is not sanitized allowing local attackers easily to bypass the pointer guarding protection on set-user-ID and set-group-ID programs. Details and PoC at: http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html A patch is already sent to Glibc maintainers. This issue is similar to http://hmarco.org/bugs/CVE-2013-4788.html but now affect to dynamic linked applications.
Could you please assign a CVE ?
Upstream commit: https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commit;h=a014cecd82b71b70a6a843e250e06b541ad524f7 Florian
Current thread:
- Re: CVE Request: Glibc Pointer guarding weakness Florian Weimer (Oct 15)
- Re: CVE Request: Glibc Pointer guarding weakness akuster (Oct 29)