CVE-2019-7308
UnknownEPSS 0.54%
Last modified
CVE-2019-7308 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.19.19 |
| Linux | Linux Kernel | >= 4.20.0, < 4.20.6 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
| Opensuse | Leap | 15.0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.htmlThird Party Advisory
- http://www.securityfocus.com/bid/106827Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1711Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.6Third Party Advisory
- https://github.com/torvalds/linux/commit/979d63d50c0c0f7bc537bf821e056cc9fe5abd38Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/d3bd7413e0ca40b60cf60d4003246d067cafdedaPatch, Third Party Advisory
- https://usn.ubuntu.com/3930-1/Third Party Advisory
- https://usn.ubuntu.com/3930-2/Third Party Advisory
- https://usn.ubuntu.com/3931-1/Third Party Advisory
- https://usn.ubuntu.com/3931-2/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.htmlThird Party Advisory
- http://www.securityfocus.com/bid/106827Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1711Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.6Third Party Advisory
- https://github.com/torvalds/linux/commit/979d63d50c0c0f7bc537bf821e056cc9fe5abd38Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/d3bd7413e0ca40b60cf60d4003246d067cafdedaPatch, Third Party Advisory
- https://usn.ubuntu.com/3930-1/Third Party Advisory
- https://usn.ubuntu.com/3930-2/Third Party Advisory
- https://usn.ubuntu.com/3931-1/Third Party Advisory
- https://usn.ubuntu.com/3931-2/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2019-7308?
Severity scoring for CVE-2019-7308 is pending analysis. The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.
How do I fix CVE-2019-7308?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2019-7308?
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Scan your code nowSource: NVD / NIST