Use After Free in Linux Kernel
CVE-2017-17975
Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c in the Linux kernel through 4.14.10 allows attackers to cause a denial of service (system crash) or possibly have unspecified other impact by triggering failure of audio registration, because a kfree of the usbtv data structure occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and free this data structure.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/102330 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3654-1/ (vendor-advisory)
- linuxtesting.org/pipermail/ldv-project/2017-November/001008.html (Third Party Advisory, Issue Tracking)
- www.debian.org/security/2018/dsa-4188 (vendor-advisory)
- usn.ubuntu.com/3653-2/ (vendor-advisory)
- usn.ubuntu.com/3654-2/ (vendor-advisory)
- usn.ubuntu.com/3656-1/ (vendor-advisory)
- usn.ubuntu.com/3653-1/ (vendor-advisory)
- usn.ubuntu.com/3657-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2017-17975?
- CVE-2017-17975 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 5.5/10. Published 2017-12-30.
- How severe is CVE-2017-17975?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2017-17975 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.