Vulnerability Details : CVE-2020-35508
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
Products affected by CVE-2020-35508
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.12:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.12:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.12:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.12:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.12:rc4:*:*:*:*:*:*
- cpe:2.3:o:netapp:fas8300_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:fas8700_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-35508
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-35508
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.4
|
MEDIUM | AV:L/AC:M/Au:N/C:P/I:P/A:P |
3.4
|
6.4
|
NIST | |
|
4.5
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L |
1.0
|
3.4
|
NIST |
CWE ids for CVE-2020-35508
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Secondary)
-
The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2020-35508
-
https://bugzilla.redhat.com/show_bug.cgi?id=1902724
1902724 – (CVE-2020-35508) CVE-2020-35508 kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parentIssue Tracking;Patch;Third Party Advisory
-
https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948
fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent · torvalds/linux@b4e0044 · GitHubPatch;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20210513-0006/
CVE-2020-35508 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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