Vulnerability in Linux Kernel
CVE-2019-19065
A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering rhashtable_init() failures, aka CID-34b3be18a04e. NOTE: This has been disputed as not a vulnerability because "rhashtable_init() can only fail if it is passed invalid values in the second parameter's struct, but when invoked from sdma_init() that is a pointer to a static const struct, so an attacker could only trigger failure if they could corrupt kernel memory (in which case a small memory leak is not a significant problem).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 16.04, 18.04, 19.04
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9 (Release Notes, Vendor Advisory)
- github.com/torvalds/linux/commit/34b3be18a04ecdc610aae4c48e5d1b799d8689f6 (Patch, Third Party Advisory)
- usn.ubuntu.com/4208-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4210-1/ (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20191205-0001/ (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html (vendor-advisory, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4226-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19065?
- CVE-2019-19065 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 4.7/10. Published 2019-11-18.
- How severe is CVE-2019-19065?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2019-19065 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.