CVE-2021-28972: Buffer Overflow
First published: Mon Mar 22 2021(Updated: )
In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <4.4.263 | |
| Linux Linux kernel | >4.5<=4.9.263 | |
| Linux Linux kernel | >=4.10<4.14.227 | |
| Linux Linux kernel | >4.15<=4.19.183 | |
| Linux Linux kernel | >=4.20<5.4.108 | |
| Linux Linux kernel | >=5.5.0<5.10.26 | |
| Linux Linux kernel | >=5.11<5.11.9 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| Netapp Cloud Backup | ||
| Netapp Fas\/aff Baseboard Management Controller | ||
| Netapp Solidfire Baseboard Management Controller Firmware | ||
| debian/linux | 5.10.223-1 6.1.106-3 6.1.99-1 6.10.9-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc7a0bb058b85ea03db87169c60c7cfdd5d34678
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4VCKIOXCOZGXBEZMO5LGGV5MWCHO6FT3/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PTRNPQTZ4GVS46SZ4OBXY5YDOGVPSTGQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/
- https://security.netapp.com/advisory/ntap-20210430-0003/
- https://launchpad.net/bugs/cve/CVE-2021-28972
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4VCKIOXCOZGXBEZMO5LGGV5MWCHO6FT3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTRNPQTZ4GVS46SZ4OBXY5YDOGVPSTGQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/
- https://git.kernel.org/linus/cc7a0bb058b85ea03db87169c60c7cfdd5d34678
- https://security-tracker.debian.org/tracker/CVE-2021-28972
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28972
- https://nvd.nist.gov/vuln/detail/CVE-2021-28972
- https://ubuntu.com/security/CVE-2021-28972
- collector/nvd-api
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/remedy
- agent/weakness
- agent/severity
- agent/author
- agent/description
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- 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
- version/linux linux kernel/4.9.263
- version/linux linux kernel/4.10
- version/linux linux kernel/4.19.183
- version/linux linux kernel/4.20
- version/linux linux kernel/5.5.0
- version/linux linux kernel/5.11
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/32
- version/fedoraproject fedora/33
- version/fedoraproject fedora/34
- vendor/netapp
- canonical/netapp cloud backup
- canonical/netapp fas\/aff baseboard management controller
- canonical/netapp solidfire baseboard management controller firmware
- package-manager/debian