CVE-2017-5548 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

drivers/net/ieee802154/atusb.c in the Linux kernel 4.9.x before 4.9.6 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a DMA scatterlist.

CVSS Score

7.8

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	4.9

Related Weaknesses (CWE)

CWE-119

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05a974Issue TrackingPatchThird Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6Release NotesVendor Advisory
http://www.openwall.com/lists/oss-security/2017/01/21/3Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/95710Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1416110Issue TrackingPatch
https://github.com/torvalds/linux/commit/05a974efa4bdf6e2a150e3f27dc6fcf0a9ad565Mailing ListPatchThird Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05a974Issue TrackingPatchThird Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6Release NotesVendor Advisory
http://www.openwall.com/lists/oss-security/2017/01/21/3Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/95710Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1416110Issue TrackingPatch
https://github.com/torvalds/linux/commit/05a974efa4bdf6e2a150e3f27dc6fcf0a9ad565Mailing ListPatchThird Party Advisory

FAQ

What is CVE-2017-5548?

CVE-2017-5548 is a vulnerability with a CVSS score of 7.8 (HIGH). drivers/net/ieee802154/atusb.c in the Linux kernel 4.9.x before 4.9.6 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or me...

How severe is CVE-2017-5548?

CVE-2017-5548 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-5548?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.