CVE-2009-4881 Integer overflow in n/a

What is CVE-2009-4881?

CVE-2009-4881 is a medium-severity vulnerability in Gnu Glibc, published on 1 Jun 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-189

Which versions are affected by CVE-2009-4881?

It affects 1 product.

Products include Gnu Glibc.

How do I fix CVE-2009-4881?

Upgrade to a fixed version.

Is CVE-2009-4881 being exploited?

There is no known exploitation of CVE-2009-4881 in the wild and no public exploit code.

Other vulnerabilities in Gnu Glibc

• CVE-2026-5450 scanf %mc off-by-one heap buffer overflow Critical 9.8
• CVE-2023-25139 Memory corruption in n/a Critical 9.8
• CVE-1999-0199 Other in n/a Critical 9.8
• CVE-2019-1010022 Security feature bypass in glibc Critical 9.8
• CVE-2005-3590 Memory corruption in n/a Critical 9.8

All Gnu Glibc vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2009-4881, GHSA-q4g7-ccjm-h2xx.