65079 : GNU C Library (glibc) stdlib/strfmon_l.c __vstrfmon_l Function Format String Overflow DoS
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Timeline

Disclosure Date
2009-10-30

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2009-4881" target="_blank">CVE</a>)</em> : Integer overflow in the __vstrfmon_l function in stdlib/strfmon_l.c in the strfmon implementation in the GNU C Library (aka glibc or libc6) before 2.10.1 allows context-dependent attackers to cause a denial of service (application crash) via a crafted format string, as demonstrated by the %99999999999999999999n string, a related issue to CVE-2008-1391.

Classification

Location: Local / Remote, Context Dependent
Attack Type: Denial of Service, Input Manipulation
Impact: Loss of Integrity, Loss of Availability
Solution: Upgrade
Disclosure: Vendor Verified

Solution

Upgrade to version 2.10.1 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Unknown or Incomplete

References

CVE ID: 2009-4881 (see also: NVD)
Secunia Advisory ID: 40121 42208
Vendor Specific News/Changelog Entry: http://lists.debian.org/debian-security-announce/2010/msg00101.html
http://sources.redhat.com/bugzilla/show_bug.cgi?id=10600
http://sourceware.org/git/?p=glibc.git;a=commit;h=153aa31b93be22e01b236375fb02a9f9b9a0195f
Vendor Specific Advisory URL: http://www.gentoo.org/security/en/glsa/glsa-201011-01.xml

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2010-06-02 | Disagree?

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