Use After Free in Linux Kernel
CVE-2020-7053
In the Linux kernel 4.14 longterm through 4.14.165 and 4.19 longterm through 4.19.96 (and 5.x before 5.2), there is a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c. This is related to i915_gem_context_destroy_ioctl in drivers/gpu/drm/i915/i915_gem_context.c.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lore.kernel.org/stable/20200114183937.12224-1-tyhicks@canonical.com
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2 (Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
- bugs.launchpad.net/ubuntu/+source/linux/+bug/1859522 (Third Party Advisory)
- usn.ubuntu.com/4255-1/ (vendor-advisory)
- usn.ubuntu.com/4255-2/ (vendor-advisory)
- security.netapp.com/advisory/ntap-20200204-0002/
- packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063…
- usn.ubuntu.com/4285-1/ (vendor-advisory)
- usn.ubuntu.com/4287-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2020-7053?
- CVE-2020-7053 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2020-01-14.
- How severe is CVE-2020-7053?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-7053 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.