Vulnerability Description
An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.6.5 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5Release NotesVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f95fPatchVendor Advisory
- https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2aPatchThird Party Advisory
- https://patchwork.kernel.org/patch/11447049/PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20200608-0001/
- https://usn.ubuntu.com/4363-1/
- https://usn.ubuntu.com/4367-1/
- https://usn.ubuntu.com/4368-1/
- https://usn.ubuntu.com/4369-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5Release NotesVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f95fPatchVendor Advisory
- https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2aPatchThird Party Advisory
- https://patchwork.kernel.org/patch/11447049/PatchVendor Advisory
FAQ
What is CVE-2020-12657?
CVE-2020-12657 is a vulnerability with a CVSS score of 7.8 (HIGH). An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.
How severe is CVE-2020-12657?
CVE-2020-12657 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12657?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.