CVE-2011-3191: n/a vulnerability

CVE-2011-3191: Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1 a...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 23:29 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2011-3191 affects the Linux kernel CIFS client before 3.1. A malicious or compromised CIFS server could send an oversized directory-read response that corrupts client memory, causing a crash or possibly other unspecified impact. Exposure is most likely on legacy Linux systems running kernels before 3.1, or unpatched vendor kernels, that mount or browse CIFS/SMB shares from untrusted or compromised servers. Treat as a legacy Linux exposure issue. It matters where older clients connect to CIFS shares outside strong trust boundaries. Prioritize patching internet-adjacent, vendor-managed, or high-availability systems first. Mitigation focus: Upgrade to Linux kernel 3.1 or a vendor kernel containing the backported fix.; Check distribution advisories for CVE-2011-3191 coverage and patched package versions.; Avoid mounting untrusted CIFS/SMB shares from vulnerable clients until patched..

Prepared: Jun 24, 2026, 12:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 24, 2012, 23:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=732869CVE reference · x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/9438fabb73eb48055b58b89fc51e0bc4db22fabdCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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