CVE-2017-5577

low-risk
Published 2017-02-06

The vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c in the VideoCore DRM driver in the Linux kernel before 4.9.7 does not set an errno value upon certain overflow detections, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) via inconsistent size values in a VC4_SUBMIT_CL ioctl call.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (14)

Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b8ac6...
Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7
Mailing List http://www.openwall.com/lists/oss-security/2017/01/21/7
Third Party Advisory http://www.securityfocus.com/bid/95765
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1416437
Issue Tracking https://github.com/torvalds/linux/commit/6b8ac63847bc2f958dd93c09edc941a0118992d...
Mailing List https://lkml.org/lkml/2017/1/17/759
Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b8ac6...
Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7
Mailing List http://www.openwall.com/lists/oss-security/2017/01/21/7
Third Party Advisory http://www.securityfocus.com/bid/95765
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1416437
Issue Tracking https://github.com/torvalds/linux/commit/6b8ac63847bc2f958dd93c09edc941a0118992d...
Mailing List https://lkml.org/lkml/2017/1/17/759
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal