CVE-2010-4656

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-07-18 · updated 2026-06-16
Weakness: CWE-787

Description

The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.

Affected products

Canonical Ubuntu Linux: 8.04
Linux kernel: before 2.6.37 — fixed in 2.6.37

How to fix

Upgrade to a fixed version: Linux kernel 2.6.37. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3ed780117dbe5acb64280d218f0347f238dafed0
http://openwall.com/lists/oss-security/2011/01/24/9
http://openwall.com/lists/oss-security/2011/01/25/3
http://openwall.com/lists/oss-security/2011/01/25/4
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
http://www.securityfocus.com/bid/46069
http://www.ubuntu.com/usn/USN-1146-1
https://bugzilla.redhat.com/show_bug.cgi?id=672420
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3ed780117dbe5acb64280d218f0347f238dafed0
http://openwall.com/lists/oss-security/2011/01/24/9
http://openwall.com/lists/oss-security/2011/01/25/3
http://openwall.com/lists/oss-security/2011/01/25/4

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