kernel: use-after-free in fs/xfs/xfs_super.c
Published Aug 19, 2019
7.8
HIGHCVSS 3.0
EPSS 0.63%
Description
An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.
Affected products
No data.
- < 4.18
No data.
Red Hat Enterprise Linux 7.2 Advanced Update Support
kernel-0:3.10.0-327.85.1.el7
Fixed · RHSA-2020:0661
Red Hat Enterprise Linux 7.3 Advanced Update Support
kernel-0:3.10.0-514.72.1.el7
Fixed · RHSA-2020:0178
Red Hat Enterprise Linux 7.3 Telco Extended Update Support
kernel-0:3.10.0-514.72.1.el7
Fixed · RHSA-2020:0178
Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions
kernel-0:3.10.0-514.72.1.el7
Fixed · RHSA-2020:0178
Red Hat Enterprise Linux 7.4 Advanced Update Support
kernel-0:3.10.0-693.64.1.el7
Fixed · RHSA-2020:0592
Red Hat Enterprise Linux 7.4 Telco Extended Update Support
kernel-0:3.10.0-693.64.1.el7
Fixed · RHSA-2020:0592
Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions
kernel-0:3.10.0-693.64.1.el7
Fixed · RHSA-2020:0592
Red Hat Enterprise Linux 7.5 Extended Update Support
kernel-0:3.10.0-862.48.1.el7
Fixed · RHSA-2020:0543
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-693.64.1.rt56.662.el6rt
Fixed · RHSA-2020:0609
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7.2 Advanced Update Support | kernel-0:3.10.0-327.85.1.el7 | Fixed | RHSA-2020:0661 |
| Red Hat Enterprise Linux 7.3 Advanced Update Support | kernel-0:3.10.0-514.72.1.el7 | Fixed | RHSA-2020:0178 |
| Red Hat Enterprise Linux 7.3 Telco Extended Update Support | kernel-0:3.10.0-514.72.1.el7 | Fixed | RHSA-2020:0178 |
| Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions | kernel-0:3.10.0-514.72.1.el7 | Fixed | RHSA-2020:0178 |
| Red Hat Enterprise Linux 7.4 Advanced Update Support | kernel-0:3.10.0-693.64.1.el7 | Fixed | RHSA-2020:0592 |
| Red Hat Enterprise Linux 7.4 Telco Extended Update Support | kernel-0:3.10.0-693.64.1.el7 | Fixed | RHSA-2020:0592 |
| Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions | kernel-0:3.10.0-693.64.1.el7 | Fixed | RHSA-2020:0592 |
| Red Hat Enterprise Linux 7.5 Extended Update Support | kernel-0:3.10.0-862.48.1.el7 | Fixed | RHSA-2020:0543 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-693.64.1.rt56.662.el6rt | Fixed | RHSA-2020:0609 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 7.6.z had fixed this flaw mid release without it being recognised as a CVE. Prior releases of Red Hat Enterprise Linux EUS/AUS will still require the fix to be secure. Trackers have been made and fixes will be available as part of the standard release cycle.
References (22)
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html vendor-advisoryx_refsource_SUSE
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html x_refsource_MISC
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html x_refsource_MISC
- https://access.redhat.com/errata/RHSA-2020:0178 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2020:0543 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2020:0592 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2020:0609 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2020:0661 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-20976 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1743547 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-13512 Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82 x_refsource_MISCPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html mailing-listx_refsource_MLIST
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-20976
- https://seclists.org/bugtraq/2019/Nov/11 mailing-listx_refsource_BUGTRAQ
- https://security.netapp.com/advisory/ntap-20190905-0002/ x_refsource_CONFIRM
- https://support.f5.com/csp/article/K10269585?utm_source=f5support&%3Butm_medium=RSS x_refsource_CONFIRM
- https://usn.ubuntu.com/4144-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4145-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2018-20976
Change history (0)
No recorded changes yet.