Use After Free in Linux Kernel
CVE-2019-8912
In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr.
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: 0.007 (49.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.1% 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 — versions 5.0
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- openSUSE Leap — versions 15.0
- Red Hat Enterprise Linux — versions 7.0
Weakness classification (CWE)
References
- www.securityfocus.com/bid/107063 (VDB Entry, Third Party Advisory, vdb-entry)
- patchwork.ozlabs.org/patch/1042902/ (Patch, Third Party Advisory)
- usn.ubuntu.com/3930-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3931-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3931-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3930-2/ (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html (vendor-advisory, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0174 (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-8912?
- CVE-2019-8912 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2019-02-18.
- How severe is CVE-2019-8912?
- High severity. CVSS v3 base score is 7.8 out of 10.