Integer overflow in Linux Kernel
CVE-2017-8924
The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the Linux kernel before 4.10.4 allows local users to obtain sensitive information (in the dmesg ringbuffer and syslog) from uninitialized kernel memory by using a crafted USB device (posing as an io_ti USB serial device) to trigger an integer underflow.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.4 (Release Notes, Vendor Advisory)
- github.com/torvalds/linux/commit/654b404f2a222f918af9b0cd18ad469d0c941a8e (Patch, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/98451 (VDB Entry, Third Party Advisory, vdb-entry)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2017/dsa-3886 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-8924?
- CVE-2017-8924 is a medium-severity vulnerability in Linux Kernel, classified under Integer Underflow. CVSS score: 4.6/10. Published 2017-05-12.
- How severe is CVE-2017-8924?
- Medium severity. CVSS v3 base score is 4.6 out of 10.
- Is CVE-2017-8924 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.