CVE-2019-8912
HIGHCVSS 7.8/10EPSS 0.65%
Last modified
CVE-2019-8912 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.65% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 4.10, < 4.14.103 | — |
| Linux | Linux Kernel | >= 4.19, < 4.19.25 | — |
| Linux | Linux Kernel | >= 4.20, < 4.20.12 | — |
| Linux | Linux Kernel | 5.0 | Rc1 |
| Redhat | Enterprise Linux | 7.0 | — |
| 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.htmlMailing List, Third Party Advisory
- http://patchwork.ozlabs.org/patch/1042902/Patch, Third Party Advisory
- http://www.securityfocus.com/bid/107063Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2020:0174Third 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
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-8912Issue Tracking, Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.htmlMailing List, Third Party Advisory
- http://patchwork.ozlabs.org/patch/1042902/Patch, Third Party Advisory
- http://www.securityfocus.com/bid/107063Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2020:0174Third 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-2019-8912?
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.
How severe is CVE-2019-8912?
CVE-2019-8912 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.65% probability of exploitation in the next 30 days.
How do I fix CVE-2019-8912?
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.
Are you affected by CVE-2019-8912?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST