Vulnerability in Linux Kernel
CVE-2020-11494
An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/torvalds/linux/commit/b9258a2cece4ec1f020715fe3554bc2e360f6264 (Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200430-0004/ (Third Party Advisory)
- usn.ubuntu.com/4364-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4368-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4363-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4369-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/06/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/06/msg00012.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/06/msg00013.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-11494?
- CVE-2020-11494 is a medium-severity vulnerability in Linux Kernel, classified under Use of Uninitialized Resource. CVSS score: 4.4/10. Published 2020-04-02.
- How severe is CVE-2020-11494?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2020-11494 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.