CVE-2020-35508

CVSS V2 Medium 4.4 CVSS V3 Medium 4.5
Description
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.
Overview
  • CVE ID
  • CVE-2020-35508
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2021-03-26T17:15:12
  • Last Modified Date
  • 2023-02-12T23:41:00
Weakness Enumerations
CWE URL
CWE-665 http://cwe.mitre.org/data/definitions/665.html
CWE-362 http://cwe.mitre.org/data/definitions/362.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.12
cpe:2.3:o:linux:linux_kernel:5.12:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:5.12:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:5.12:rc2:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:5.12:rc3:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:5.12:rc4:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:a700s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:netapp:fas8300_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:fas8300:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:fas8700_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:fas8700:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:aff_a400:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • LOW
  • Base Score
  • 4.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1
  • Impact Score
  • 3.4
References
Reference URL Reference Tags
https://access.redhat.com/errata/RHSA-2021:1578
https://access.redhat.com/errata/RHSA-2021:1739
https://access.redhat.com/errata/RHSA-2021:2718
https://access.redhat.com/errata/RHSA-2021:2719
https://access.redhat.com/security/cve/CVE-2020-35508
https://bugzilla.redhat.com/show_bug.cgi?id=1902724 Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948 Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210513-0006/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-35508
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35508
History
Created Old Value New Value Data Type Notes
2022-05-10 06:40:50 Added to TrackCVE
2022-12-06 00:30:38 2021-03-26T17:15Z 2021-03-26T17:15:12 CVE Published Date updated
2022-12-06 00:30:38 2022-08-05T17:43:03 CVE Modified Date updated
2022-12-06 00:30:38 Analyzed Vulnerability Status updated
2023-02-02 23:11:48 2023-02-02T21:20:46 CVE Modified Date updated
2023-02-02 23:11:48 Analyzed Modified Vulnerability Status updated
2023-02-02 23:11:48 References updated
2023-02-13 00:12:26 2023-02-12T23:41:00 CVE Modified Date updated
2023-02-13 00:12:26 Weakness Enumeration update