medium
4.9
CWE
476
Advisory Published
CVE Published
Updated

CVE-2015-7515: Null Pointer Dereference

First published: Wed Nov 25 2015(Updated: )

An out-of-bounds memory access flaw was found in aiptek USB tablet driver in aiptek_probe() function in drivers/input/tablet/aiptek.c. The driver assumes that the interface always has at least one endpoint. By using a specially crafted USB device with no endpoints on one of its interfaces an unprivileged user with a physical access to the system can trigger a kernel NULL pointer dereference causing the system to panic. Acknowledgements: Red Hat would like to thank Ralf Spenneberg of OpenSource Security for reporting this issue. References: Proposed upstream patch: <a href="http://www.spinics.net/lists/linux-input/msg42294.html">http://www.spinics.net/lists/linux-input/msg42294.html</a> Upstream patch: <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8e20cf2bce122ce9262d6034ee5d5b76fbb92f96">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8e20cf2bce122ce9262d6034ee5d5b76fbb92f96</a>

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Linux kernel<4.4
Linux Linux kernel=4.4-rc1
Linux Linux kernel=4.4-rc2
Linux Linux kernel=4.4-rc3
Linux Linux kernel=4.4-rc4
Linux Linux kernel=4.4-rc5
Linux Linux kernel=4.4-rc6
Linux Linux kernel=4.4-rc7
Linux Linux kernel=4.4-rc8
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.119-1
6.11.10-1
6.12.5-1

Remedy

https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Remedy

https://git.kernel.org/linus/8e20cf2bce122ce9262d6034ee5d5b76fbb92f96

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID for this vulnerability?

    The vulnerability ID for this vulnerability is CVE-2015-7515.

  • What is the severity of CVE-2015-7515?

    The severity of CVE-2015-7515 is low.

  • How does CVE-2015-7515 affect the Linux kernel?

    CVE-2015-7515 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted USB device that lacks endpoints.

  • Which versions of the Linux kernel are affected by CVE-2015-7515?

    The Linux kernel versions before 4.4 are affected by CVE-2015-7515.

  • Is there a fix available for CVE-2015-7515?

    Yes, the fix for CVE-2015-7515 is available in Linux kernel version 4.4 and above.

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