kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c
Published Feb 6, 2020
5.9
MEDIUMCVSS 3.1
EPSS 0.49%
Description
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.
Affected products
No data.
Configuration 1
- ≤ 5.5.2
Configuration 3
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-1160.el7
Fixed · RHSA-2020:4060
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-1160.rt56.1131.el7
Fixed · RHSA-2020:4062
Red Hat Enterprise Linux 8
kernel-0:4.18.0-240.el8
Fixed · RHSA-2020:4431
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-240.rt7.54.el8
Fixed · RHSA-2020:4609
Red Hat Enterprise Linux 8.2 Extended Update Support
kernel-0:4.18.0-193.80.1.el8_2
Fixed · RHSA-2022:1213
Red Hat Enterprise Linux 8.2 Extended Update Support
kernel-rt-0:4.18.0-193.80.1.rt13.130.el8_2
Fixed · RHSA-2022:1209
Red Hat Enterprise Linux 5
kernel
Out of support scope
Red Hat Enterprise Linux 6
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel-alt
Will not fix
Red Hat Enterprise MRG 2
kernel
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-1160.el7 | Fixed | RHSA-2020:4060 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-1160.rt56.1131.el7 | Fixed | RHSA-2020:4062 |
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-240.el8 | Fixed | RHSA-2020:4431 |
| Red Hat Enterprise Linux 8 | kernel-rt-0:4.18.0-240.rt7.54.el8 | Fixed | RHSA-2020:4609 |
| Red Hat Enterprise Linux 8.2 Extended Update Support | kernel-0:4.18.0-193.80.1.el8_2 | Fixed | RHSA-2022:1213 |
| Red Hat Enterprise Linux 8.2 Extended Update Support | kernel-rt-0:4.18.0-193.80.1.rt13.130.el8_2 | Fixed | RHSA-2022:1209 |
| Red Hat Enterprise Linux 5 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Will not fix | n/a |
| Red Hat Enterprise MRG 2 | kernel | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw is rated as a having Moderate impact, it is an infoleak that is written to the screen.
Red Hat mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References (11)
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2020-8649 Vendor Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=206357 x_refsource_MISCExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1802555 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-29497 Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-8649
- https://www.cve.org/CVERecord?id=CVE-2020-8649
- https://www.debian.org/security/2020/dsa-4698 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
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GitHub
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