SB2017081743 - Input validation error in GNU Glibc
Published: August 17, 2017 Updated: June 28, 2025
Security Bulletin ID
SB2017081743
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2009-4881)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
Remediation
Install update from vendor's website.
References
- http://security.gentoo.org/glsa/glsa-201011-01.xml
- http://sources.redhat.com/bugzilla/show_bug.cgi?id=10600
- http://sourceware.org/git/?p=glibc.git;a=commit;h=153aa31b93be22e01b236375fb02a9f9b9a0195f
- http://www.debian.org/security/2010/dsa-2058
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:111
- https://exchange.xforce.ibmcloud.com/vulnerabilities/59241