medium
5
CWE
190 189
Advisory Published
CVE Published
Updated

CVE-2009-4881: Integer Overflow

First published: Tue Mar 25 2008(Updated: )

Common Vulnerabilities and Exposures assigned an identifier <a href="https://access.redhat.com/security/cve/CVE-2009-4881">CVE-2009-4881</a> to the following vulnerability: 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 <a href="https://access.redhat.com/security/cve/CVE-2008-1391">CVE-2008-1391</a>. References: [1] <a href="http://sources.redhat.com/bugzilla/show_bug.cgi?id=10600">http://sources.redhat.com/bugzilla/show_bug.cgi?id=10600</a> [2] <a href="http://sourceware.org/git/?p=glibc.git;a=commit;h=153aa31b93be22e01b236375fb02a9f9b9a0195f">http://sourceware.org/git/?p=glibc.git;a=commit;h=153aa31b93be22e01b236375fb02a9f9b9a0195f</a> [3] <a href="http://sources.redhat.com/bugzilla/show_bug.cgi?id=10600">http://sources.redhat.com/bugzilla/show_bug.cgi?id=10600</a> [4] <a href="http://securityreason.com/achievement_securityalert/53">http://securityreason.com/achievement_securityalert/53</a> [5] <a href="http://xorl.wordpress.com/2009/04/11/cve-2008-1391-netbsd-strfmon-integer-overflow/">http://xorl.wordpress.com/2009/04/11/cve-2008-1391-netbsd-strfmon-integer-overflow/</a> Public PoC (from [4]): #include &lt;stdio.h&gt; #include &lt;monetary.h&gt; int main(int argc, char* argv[]){ char buff[51]; char *bux=buff; int res; res=strfmon(bux, 50, argv[1], "0"); return 0; } cxib# ./pln %99999999999999999999n

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
GNU C Library=2.2.2
GNU C Library=2.7
GNU C Library=2.1.2
GNU C Library=2.0.5
GNU C Library=2.2.5
GNU C Library=2.0.6
GNU C Library=1.00
GNU C Library=1.06
GNU C Library=2.1.1
GNU C Library=1.02
GNU C Library=2.0.3
GNU C Library=1.07
GNU C Library=2.3.1
GNU C Library=2.3
GNU C Library=2.0
GNU C Library=2.1.1.6
GNU C Library=1.04
GNU C Library=1.01
GNU C Library=2.3.10
GNU C Library=2.4
GNU C Library=2.1
GNU C Library=2.3.4
GNU C Library=2.1.9
GNU C Library=2.3.3
GNU C Library=2.6.1
GNU C Library=2.0.1
GNU C Library=1.09
GNU C Library=2.5.1
GNU C Library=2.6
GNU C Library=2.0.4
GNU C Library=2.0.2
GNU C Library=2.2.1
GNU C Library=2.3.2
GNU C Library=1.03
GNU C Library=2.1.3.10
GNU C Library=2.3.6
GNU C Library=2.2.3
GNU C Library=2.5
GNU C Library=1.08
GNU C Library=2.3.5
GNU C Library=2.8
GNU C Library<=2.9
GNU C Library=2.2.4
GNU C Library=2.1.3
GNU C Library=1.05
GNU C Library=2.2
GNU C Library (glibc)<=2.9
GNU C Library (glibc)=1.00
GNU C Library (glibc)=1.01
GNU C Library (glibc)=1.02
GNU C Library (glibc)=1.03
GNU C Library (glibc)=1.04
GNU C Library (glibc)=1.05
GNU C Library (glibc)=1.06
GNU C Library (glibc)=1.07
GNU C Library (glibc)=1.08
GNU C Library (glibc)=1.09
GNU C Library (glibc)=2.0
GNU C Library (glibc)=2.0.1
GNU C Library (glibc)=2.0.2
GNU C Library (glibc)=2.0.3
GNU C Library (glibc)=2.0.4
GNU C Library (glibc)=2.0.5
GNU C Library (glibc)=2.0.6
GNU C Library (glibc)=2.1
GNU C Library (glibc)=2.1.1
GNU C Library (glibc)=2.1.1.6
GNU C Library (glibc)=2.1.2
GNU C Library (glibc)=2.1.3
GNU C Library (glibc)=2.1.3.10
GNU C Library (glibc)=2.1.9
GNU C Library (glibc)=2.2
GNU C Library (glibc)=2.2.1
GNU C Library (glibc)=2.2.2
GNU C Library (glibc)=2.2.3
GNU C Library (glibc)=2.2.4
GNU C Library (glibc)=2.2.5
GNU C Library (glibc)=2.3
GNU C Library (glibc)=2.3.1
GNU C Library (glibc)=2.3.2
GNU C Library (glibc)=2.3.3
GNU C Library (glibc)=2.3.4
GNU C Library (glibc)=2.3.5
GNU C Library (glibc)=2.3.6
GNU C Library (glibc)=2.3.10
GNU C Library (glibc)=2.4
GNU C Library (glibc)=2.5
GNU C Library (glibc)=2.5.1
GNU C Library (glibc)=2.6
GNU C Library (glibc)=2.6.1
GNU C Library (glibc)=2.7
GNU C Library (glibc)=2.8

Remedy

http://sourceware.org/git/?p=glibc.git;a=commit;h=153aa31b93be22e01b236375fb02a9f9b9a0195f

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2009-4881?

    CVE-2009-4881 is classified as a high severity vulnerability due to its potential for integer overflow leading to security implications.

  • How do I fix CVE-2009-4881?

    To remediate CVE-2009-4881, you should update the GNU C Library (glibc) to the latest version that has addressed this vulnerability.

  • Which versions of GNU C Library are affected by CVE-2009-4881?

    CVE-2009-4881 affects multiple versions of GNU C Library, including 1.00 to 2.9, with specific vulnerabilities in versions 2.0 to 2.8.

  • What type of vulnerability is CVE-2009-4881?

    CVE-2009-4881 is categorized as an integer overflow vulnerability found in the strfmon implementation of the GNU C Library.

  • What are the potential impacts of CVE-2009-4881 if exploited?

    If exploited, CVE-2009-4881 may allow attackers to execute arbitrary code or cause unexpected behavior in applications that utilize the affected glibc versions.

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