U radu programskog paketa SystemTap uočena su dva sigurnosna propusta koje lokalni napadač može iskoristiti za izvođenje DoS (eng. Denial of Service) napada.

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 Mandriva Linux Security Advisory                         MDVSA-2011:155
 http://www.mandriva.com/security/
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 Package : systemtap
 Date    : October 17, 2011
 Affected: 2011.
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 Problem Description:

 Multiple vulnerabilities has been discovered and corrected in
 systemtap:
 
 SystemTap 1.4 and earlier, when unprivileged (aka stapusr)
 mode is enabled, allows local users to cause a denial of service
 (divide-by-zero error and OOPS) via a crafted ELF program with DWARF
 expressions that are not properly handled by a stap script that
 performs context variable access (CVE-2011-1769).
 
 SystemTap 1.4, when unprivileged (aka stapusr) mode is enabled,
 allows local users to cause a denial of service (divide-by-zero error
 and OOPS) via a crafted ELF program with DWARF expressions that are
 not properly handled by a stap script that performs stack unwinding
 (aka backtracing) (CVE-2011-1781).
 
 The updated packages have been patched to correct these issues.
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 References:

 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1769
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1781
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 Updated Packages:

 Mandriva Linux 2011:
 67ba5bb61a22be13c4733ec7a55c69d6 
2011/i586/systemtap-1.4-1.1-mdv2011.0.i586.rpm 
 8111bc0afc62a289f80a7c59c230d534  2011/SRPMS/systemtap-1.4-1.1.src.rpm

 Mandriva Linux 2011/X86_64:
 ed96532b46d31ccd56e8738685ef9e90 
2011/x86_64/systemtap-1.4-1.1-mdv2011.0.x86_64.rpm 
 8111bc0afc62a289f80a7c59c230d534  2011/SRPMS/systemtap-1.4-1.1.src.rpm
 _______________________________________________________________________

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 _______________________________________________________________________

 Type Bits/KeyID     Date       User ID
 pub  1024D/22458A98 2000-07-10 Mandriva Security Team
  <security*mandriva.com>
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