Vulnerability Details : CVE-2021-37576
Potential exploit
arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-37576
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-37576
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-37576
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-37576
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-37576
-
https://security.netapp.com/advisory/ntap-20210917-0005/
CVE-2021-37576 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a
kernel/git/torvalds/linux.git - Linux kernel source treePatch;Vendor Advisory
-
https://www.debian.org/security/2021/dsa-4978
Debian -- Security Information -- DSA-4978-1 linuxThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/07/27/2
oss-security - Re: Linux kernel: powerpc: KVM guest to host memory corruptionExploit;Mailing List;Patch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WDFA7DSQIPM7XPNXJBXFWXHJFVUBCAG6/
[SECURITY] Fedora 33 Update: kernel-tools-5.13.6-100.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://lore.kernel.org/linuxppc-dev/87im0x1lqi.fsf@mpe.ellerman.id.au/T/#u
Linux kernel: powerpc: KVM guest to host memory corruptionExploit;Mailing List;Patch;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z2YZ2DNURMYYVDT2NYAFDESJC35KCUDS/
[SECURITY] Fedora 34 Update: kernel-tools-5.13.6-200.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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