PRIOn knowledge basePRION:CVE-2021-33909Integer overflow
fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.
| CPE | Name | Operator | Version |
|---|---|---|---|
| debian_linux | eq | 9.0 | |
| debian_linux | eq | 10.0 | |
| fedora | eq | 34 | |
| linux_kernel | ge | 5.5 | |
| linux_kernel | lt | 5.10.52 | |
| linux_kernel | ge | 5.11 | |
| linux_kernel | lt | 5.12.19 | |
| linux_kernel | ge | 5.13 | |
| linux_kernel | lt | 5.13.4 | |
| linux_kernel | ge | 3.12.43 |
References
packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html
packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html
packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html
packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html
www.openwall.com/lists/oss-security/2021/07/22/7
www.openwall.com/lists/oss-security/2021/08/25/10
www.openwall.com/lists/oss-security/2021/09/17/2
www.openwall.com/lists/oss-security/2021/09/17/4
www.openwall.com/lists/oss-security/2021/09/21/1
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b
lists.debian.org/debian-lts-announce/2021/07/msg00014.html
lists.debian.org/debian-lts-announce/2021/07/msg00015.html
lists.debian.org/debian-lts-announce/2021/07/msg00016.html
lists.fedoraproject.org/archives/list/[email protected]/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/
psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015
security.netapp.com/advisory/ntap-20210819-0004/
www.debian.org/security/2021/dsa-4941
www.openwall.com/lists/oss-security/2021/07/20/1
www.oracle.com/security-alerts/cpujan2022.html
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