high7.8
CVE-2021-41073
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a fre…
Impact
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 5.10 before 5.10.68 from 5.11 before 5.14.7 |
| Debian | Debian Linux | Version 10.0 |
| Fedoraproject | Fedora | Versions 33, 34 |
| Netapp | Cloud Backup | All versions |
| Netapp | Solidfire Baseboard Management Controller | All versions |
| Netapp | H410c Firmware | All versions |
| Netapp | H300s Firmware | All versions |
| Netapp | H500s Firmware | All versions |
| Netapp | H700s Firmware | All versions |
| Netapp | H300e Firmware | All versions |
| Netapp | H500e Firmware | All versions |
| Netapp | H700e Firmware | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2022/06/04/4
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/
- https://security.netapp.com/advisory/ntap-20211014-0003/
- https://www.debian.org/security/2021/dsa-4978
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2022/06/04/4
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/
- https://security.netapp.com/advisory/ntap-20211014-0003/
- https://www.debian.org/security/2021/dsa-4978