CVE-2021-3506
Published: April 19, 2021Last modified: July 16, 2024
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | Stream | linux-lts | Not affected (6.1.33-r0) |
References
- http://www.openwall.com/lists/oss-security/2021/05/08/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1944298
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://security.netapp.com/advisory/ntap-20210611-0007/
- https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg2520013.html
- https://www.openwall.com/lists/oss-security/2021/03/28/2