Vulnerability in Linux Kernel
CVE-2019-7308
kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (43.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.4% 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 14.04, 16.04, 18.04
- openSUSE Leap — versions 15.0
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- CKExploits/pwnlinux
- fengjixuchui/CPU-vulnerabiility-collections
- houjingyi233/CPU-vulnerability-collections
- kdn111/linux-kernel-exploitation
- khanhdn111/linux-kernel-exploitation
- khanhdz-06/linux-kernel-exploitation
- khanhdz191/linux-kernel-exploitation
- khanhhdz/linux-kernel-exploitation
- khanhhdz06/linux-kernel-exploitation
References
- github.com/torvalds/linux/commit/979d63d50c0c0f7bc537bf821e056cc9fe5abd38 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
- bugs.chromium.org/p/project-zero/issues/detail (Patch, Third Party Advisory, Issue Tracking)
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.6 (Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
- github.com/torvalds/linux/commit/d3bd7413e0ca40b60cf60d4003246d067cafdeda (Patch, Third Party Advisory)
- www.securityfocus.com/bid/106827 (VDB Entry, Third Party Advisory, vdb-entry)
- 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)
Frequently asked questions
- What is CVE-2019-7308?
- CVE-2019-7308 is a medium-severity vulnerability in Linux Kernel, classified under CWE-189. CVSS score: 5.6/10. Published 2019-02-01.
- How severe is CVE-2019-7308?
- Medium severity. CVSS v3 base score is 5.6 out of 10.
- Is CVE-2019-7308 known to be exploited?
- 18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.