CVE-2011-3191 Integer overflow in n/a

What is CVE-2011-3191?

CVE-2011-3191 is a high-severity vulnerability in Linux kernel, published on 24 May 2012. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1 allows remote CIFS servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large length value in a response to a read request for a directory.

Weakness: CWE-119

Which versions are affected by CVE-2011-3191?

It affects 2 products.

Products include Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2011-3191?

Upgrade to a fixed version.

Is CVE-2011-3191 being exploited?

There is no known exploitation of CVE-2011-3191 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

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

Also known as GHSA-xhj3-gjcc-48pc.