PT-2011-2169 · Ruby+1 · Ruby+1

Drew Yao · Published 2011-03-22 · Updated 2011-08-24 · CVE-2011-0188

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Ruby versions 1.9.2-p136 and earlier

Description The issue is related to the VpMemAlloc function in bigdecimal.c in the BigDecimal class, which does not properly allocate memory. This allows context-dependent attackers to execute arbitrary code or cause a denial of service via vectors involving creation of a large BigDecimal value within a 64-bit process. The issue is related to an "integer truncation issue" and only affects 64-bit systems.

Recommendations For Ruby versions 1.9.2-p136 and earlier, consider updating to a newer version to mitigate the risk, as the issue is resolved in later versions. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-189

Related Identifiers

CVE-2011-0188

DLA-235-1

DLA-88-1

RHSA-2011:0908

RHSA-2011:0909

RHSA-2011:0910

RHSA-2011_0908

RHSA-2011_0909

RHSA-2011_0910

RHSA-2026:7305

RHSA-2026:7307

RHSA-2026:8838

Affected Products

Red Hat

Ruby

References · 12

• http://mandriva.com/security/advisories?name=MDVSA-2011:097 · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2011:098 · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2011-0910.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2011-0910.html · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2011-0909.html · Vendor Advisory
• http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ext/bigdecimal/bigdecimal.c?r1=29364&r2=30993 · Vendor Advisory
• http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2011-0908.html · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=682332 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2011-0188 · Security Note
• http://support.apple.com/kb/HT4581 · Patch
• http://securitytracker.com/id?1025236 · Note