CVE-2021-3753: Race Condition
First published: Tue Aug 31 2021(Updated: )
A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <5.15 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Netapp Active Iq Unified Manager Vmware Vsphere | ||
| Netapp Element Software | ||
| Netapp Hci Management Node | ||
| Netapp Solidfire | ||
| All of | ||
| Netapp Bootstrap Os | ||
| Netapp Hci Compute Node | ||
| All of | ||
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| All of | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| All of | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| All of | ||
| Netapp H410s Firmware | ||
| Netapp H410s | ||
| All of | ||
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| Netapp Bootstrap Os | ||
| Netapp Hci Compute Node | ||
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| Netapp H410s Firmware | ||
| Netapp H410s | ||
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| redhat/Linux kernel | <5.15 | 5.15 |
| debian/linux | 5.10.223-1 6.1.106-3 6.1.99-1 6.10.9-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1999589
- https://github.com/torvalds/linux/commit/2287a51ba822384834dafc1c798453375d1107c7
- https://www.openwall.com/lists/oss-security/2021/09/01/4
- https://security.netapp.com/advisory/ntap-20221028-0003/
- https://launchpad.net/bugs/cve/CVE-2021-3753
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://git.kernel.org/linus/2287a51ba822384834dafc1c798453375d1107c7
- https://security-tracker.debian.org/tracker/CVE-2021-3753
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3753
- https://nvd.nist.gov/vuln/detail/CVE-2021-3753
- https://ubuntu.com/security/CVE-2021-3753
- collector/launchpad-cve
- source/Launchpad
- agent/type
- agent/first-publish-date
- agent/author
- agent/weakness
- agent/severity
- agent/remedy
- agent/description
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-3753
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- vendor/linux
- canonical/linux linux kernel
- vendor/redhat
- canonical/redhat enterprise linux
- version/redhat enterprise linux/7.0
- version/redhat enterprise linux/8.0
- vendor/netapp
- canonical/netapp active iq unified manager vmware vsphere
- canonical/netapp element software
- canonical/netapp hci management node
- canonical/netapp solidfire
- canonical/netapp bootstrap os
- canonical/netapp hci compute node
- canonical/netapp h300s firmware
- canonical/netapp h300s
- canonical/netapp h500s firmware
- canonical/netapp h500s
- canonical/netapp h700s firmware
- canonical/netapp h700s
- canonical/netapp h410s firmware
- canonical/netapp h410s
- canonical/netapp h410c firmware
- canonical/netapp h410c
- package-manager/redhat
- package-manager/debian