CVE-2021-3483: Use After Free
First published: Fri Apr 09 2021(Updated: )
A flaw was found in the Nosy driver in the Linux kernel in versions prior to v5.12-rc6. It allows a device to be inserted twice into a doubly linked list, leading to use-after-free when one of these devices is removed. Reference: <a href="https://www.openwall.com/lists/oss-security/2021/04/07/1">https://www.openwall.com/lists/oss-security/2021/04/07/1</a> Upstream patch: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=829933ef05a951c8ff140e814656d73e74915faf">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=829933ef05a951c8ff140e814656d73e74915faf</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.12 | 5.12 |
| Linux Kernel | <5.12 | |
| Linux Kernel | =5.12-rc1 | |
| Linux Kernel | =5.12-rc2 | |
| Linux Kernel | =5.12-rc3 | |
| Linux Kernel | =5.12-rc4 | |
| Linux Kernel | =5.12-rc5 | |
| Debian GNU/Linux | =9.0 | |
| netapp cloud backup | ||
| All of | ||
| netapp h300s firmware | ||
| netapp h300s | ||
| All of | ||
| NetApp H500S Firmware | ||
| netapp h500s | ||
| All of | ||
| netapp h700s firmware | ||
| netapp h700s | ||
| All of | ||
| netapp h300e firmware | ||
| netapp h300e | ||
| All of | ||
| netapp h500e firmware | ||
| netapp h500e | ||
| All of | ||
| netapp h700e firmware | ||
| netapp h700e | ||
| All of | ||
| netapp h410s firmware | ||
| netapp h410s | ||
| All of | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| netapp h300s firmware | ||
| netapp h300s | ||
| NetApp H500S Firmware | ||
| netapp h500s | ||
| netapp h700s firmware | ||
| netapp h700s | ||
| netapp h300e firmware | ||
| netapp h300e | ||
| netapp h500e firmware | ||
| netapp h500e | ||
| netapp h700e firmware | ||
| netapp h700e | ||
| netapp h410s firmware | ||
| netapp h410s | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1948045
- http://www.openwall.com/lists/oss-security/2021/04/07/1
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://security.netapp.com/advisory/ntap-20210629-0002/
- https://launchpad.net/bugs/cve/CVE-2021-3483
- https://www.openwall.com/lists/oss-security/2021/04/07/1
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=829933ef05a951c8ff140e814656d73e74915faf
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1948046
- https://access.redhat.com/security/cve/cve-2021-3483
- https://git.kernel.org/linus/829933ef05a951c8ff140e814656d73e74915faf
- https://security-tracker.debian.org/tracker/CVE-2021-3483
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3483
- https://nvd.nist.gov/vuln/detail/CVE-2021-3483
- https://ubuntu.com/security/CVE-2021-3483
Frequently Asked Questions
What is the severity of CVE-2021-3483?
CVE-2021-3483 has been rated as a moderate severity vulnerability due to the risk of use-after-free conditions.
How do I fix CVE-2021-3483?
To fix CVE-2021-3483, you should upgrade your Linux kernel to version 5.12 or later.
Which versions of the Linux kernel are affected by CVE-2021-3483?
CVE-2021-3483 affects all Linux kernel versions prior to 5.12-rc6.
Is CVE-2021-3483 relevant to Debian Linux users?
Yes, Debian Linux versions using kernels below 5.12 are vulnerable to CVE-2021-3483.
What type of systems does CVE-2021-3483 impact?
CVE-2021-3483 impacts systems using vulnerable versions of the Linux kernel, specifically those with the Nosy driver.
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/severity
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-3483
- agent/software-canonical-lookup
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/references
- agent/first-publish-date
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/last-modified-date
- agent/trending
- agent/source
- agent/event
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- agent/tags
- agent/softwarecombine
- collector/security-tracker-debian
- source/Debian
- package-manager/redhat
- vendor/linux
- canonical/linux kernel
- version/linux kernel/5.12-rc1
- version/linux kernel/5.12-rc2
- version/linux kernel/5.12-rc3
- version/linux kernel/5.12-rc4
- version/linux kernel/5.12-rc5
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/9.0
- vendor/netapp
- canonical/netapp cloud backup
- canonical/netapp h300s firmware
- canonical/netapp h300s
- canonical/netapp h500s firmware
- canonical/netapp h500s
- canonical/netapp h700s firmware
- canonical/netapp h700s
- canonical/netapp h300e firmware
- canonical/netapp h300e
- canonical/netapp h500e firmware
- canonical/netapp h500e
- canonical/netapp h700e firmware
- canonical/netapp h700e
- canonical/netapp h410s firmware
- canonical/netapp h410s
- canonical/netapp h410c firmware
- canonical/netapp h410c
- package-manager/debian