Buffer overflow in Linux Kernel
CVE-2020-10757
A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system.
Vulnerability class: Buffer Overflow
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: 0.010 (61.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Linux Kernel
- NetApp Active Iq Unified Manager
- NetApp Cloud Backup
- NetApp Steelstore Cloud Integrated Storage
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
- Debian Linux — versions 8.0
- Fedoraproject Fedora — versions 31
- openSUSE Leap — versions 15.1
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Red Hat Enterprise Mrg — versions 2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2020/06/04/4 (Exploit, Mailing List, Third Party Advisory)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (vendor-advisory, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2020/06/msg00012.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2020/dsa-4698 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2020/dsa-4699 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, VDB Entry, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html (vendor-advisory, Patch, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200702-0004/ (Third Party Advisory)
- usn.ubuntu.com/4439-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-10757?
- CVE-2020-10757 is a high-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2020-06-09.
- How severe is CVE-2020-10757?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-10757 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.