Vulnerability in Linux Kernel
CVE-2020-11884
In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.9% 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
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- www.debian.org/security/2020/dsa-4667 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4343-1/ (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- usn.ubuntu.com/4345-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4342-1/ (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200608-0001/ (Third Party Advisory)
- git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/ (Patch, Mailing List, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-11884?
- CVE-2020-11884 is a high-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2020-04-29.
- How severe is CVE-2020-11884?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2020-11884 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.