Vulnerability Description
An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.12 |
| Debian | Debian Linux | 9.0 |
| Netapp | Cloud Backup | - |
| Netapp | Solidfire Baseboard Management Controller Firmware | - |
| 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 | - |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/05/08/1Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1944298Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210611-0007/Third Party Advisory
- https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg2520013.html
- https://www.openwall.com/lists/oss-security/2021/03/28/2Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/08/1Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1944298Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210611-0007/Third Party Advisory
- https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg2520013.html
- https://www.openwall.com/lists/oss-security/2021/03/28/2Mailing ListPatchThird Party Advisory
FAQ
What is CVE-2021-3506?
CVE-2021-3506 is a vulnerability with a CVSS score of 7.1 (HIGH). An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain acces...
How severe is CVE-2021-3506?
CVE-2021-3506 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3506?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Netapp Cloud Backup, Netapp Solidfire Baseboard Management Controller Firmware, Netapp H300S Firmware.