VulnerabilityModified
CVE-2018-20836
There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.
HIGH 8.1EPSS 5.11%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.11% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362, CWE-416
- Affected
- linux/linux kernel · canonical/ubuntu linux · debian/debian linux · f5/traffix signaling delivery controller · netapp/active iq unified manager · netapp/snapprotect · netapp/solidfire \& hci management node · netapp/solidfire \& hci storage node · netapp/storage replication adapter for clustered data ontap · netapp/vasa provider for clustered data ontap · netapp/virtual storage console · netapp/hci compute node · opensuse/leap
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/108196Third Party Advisory, VDB Entry
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16aePatch, Vendor Advisory
- https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16aePatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/08/msg00016.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/08/msg00017.htmlMailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Aug/13Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Aug/18Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190719-0003/Third Party Advisory
- https://support.f5.com/csp/article/K11225249Third Party Advisory
- https://usn.ubuntu.com/4076-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4495Third Party Advisory
- https://www.debian.org/security/2019/dsa-4497Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/108196Third Party Advisory, VDB Entry
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16aePatch, Vendor Advisory
- https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16aePatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/08/msg00016.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/08/msg00017.htmlMailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Aug/13Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Aug/18Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190719-0003/Third Party Advisory
- https://support.f5.com/csp/article/K11225249Third Party Advisory
- https://usn.ubuntu.com/4076-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4495Third Party Advisory
- https://www.debian.org/security/2019/dsa-4497Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.