CVE-2020-12826
Detail
Modified This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial operational threat.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
References to Advisories, Solutions, and Tools
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URL
Source(s)
Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1822077
CVE, MITRE
Issue Tracking
Patch
Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
CVE, MITRE
Release Notes
Third Party Advisory
https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef
CVE, MITRE
Patch
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
CVE, MITRE
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
CVE, MITRE
https://lists.openwall.net/linux-kernel/2020/03/24/1803
CVE, MITRE
Exploit
Mailing List
Patch
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200608-0001/
CVE, MITRE
https://usn.ubuntu.com/4367-1/
CVE, MITRE
Third Party Advisory
https://usn.ubuntu.com/4369-1/
CVE, MITRE
https://usn.ubuntu.com/4391-1/
CVE, MITRE
https://www.openwall.com/lists/kernel-hardening/2020/03/25/1
CVE, MITRE
Exploit
Mailing List
Patch
Third Party Advisory
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-190
Integer Overflow or Wraparound
NIST
Change History
12 change records found show changes
CVE Modified by CVE 11/21/2024 12:00:20 AM
Action
Type
Old Value
New Value
Added
Reference
https://bugzilla.redhat.com/show_bug.cgi?id=1822077
Added
Reference
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
Added
Reference
https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
Added
Reference
https://lists.openwall.net/linux-kernel/2020/03/24/1803
Added
Reference
https://security.netapp.com/advisory/ntap-20200608-0001/
Added
Reference
https://usn.ubuntu.com/4367-1/
Added
Reference
https://usn.ubuntu.com/4369-1/
Added
Reference
https://usn.ubuntu.com/4391-1/
Added
Reference
https://www.openwall.com/lists/kernel-hardening/2020/03/25/1
CVE Modified by MITRE 5/14/2024 2:22:08 AM
Action
Type
Old Value
New Value
CPE Deprecation Remap by NIST 7/15/2021 3:16:09 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
OR
*cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
CVE Modified by MITRE 6/22/2020 6:15:12 PM
Action
Type
Old Value
New Value
Added
Reference
https://usn.ubuntu.com/4391-1/ [No Types Assigned]
CVE Modified by MITRE 6/10/2020 9:15:16 AM
Action
Type
Old Value
New Value
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html [No Types Assigned]
CVE Modified by MITRE 6/09/2020 8:15:15 PM
Action
Type
Old Value
New Value
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html [No Types Assigned]
CVE Modified by MITRE 6/08/2020 9:15:14 AM
Action
Type
Old Value
New Value
Added
Reference
https://security.netapp.com/advisory/ntap-20200608-0001/ [No Types Assigned]
CVE Modified by MITRE 5/29/2020 9:15:10 PM
Action
Type
Old Value
New Value
Added
Reference
https://usn.ubuntu.com/4369-1/ [No Types Assigned]
Modified Analysis by NIST 5/28/2020 11:19:05 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Removed
CVSS V3.1
NIST AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Added
CVSS V2
NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Removed
CVSS V2
NIST (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Changed
CPE Configuration
OR
*cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=1822077 Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1822077 Issue Tracking, Patch, Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/4367-1/ No Types Assigned
https://usn.ubuntu.com/4367-1/ Third Party Advisory
CVE Modified by MITRE 5/24/2020 6:15:10 PM
Action
Type
Old Value
New Value
Added
Reference
https://usn.ubuntu.com/4367-1/ [No Types Assigned]
Initial Analysis by NIST 5/14/2020 12:25:30 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Added
CVSS V2
NIST (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Added
CWE
NIST CWE-190
Added
CPE Configuration
OR
*cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.6.5
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=1822077 No Types Assigned
https://bugzilla.redhat.com/show_bug.cgi?id=1822077 Patch, Third Party Advisory
Changed
Reference Type
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5 No Types Assigned
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5 Release Notes, Third Party Advisory
Changed
Reference Type
https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef No Types Assigned
https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef Patch, Third Party Advisory
Changed
Reference Type
https://lists.openwall.net/linux-kernel/2020/03/24/1803 No Types Assigned
https://lists.openwall.net/linux-kernel/2020/03/24/1803 Exploit, Mailing List, Patch, Third Party Advisory
Changed
Reference Type
https://www.openwall.com/lists/kernel-hardening/2020/03/25/1 No Types Assigned
https://www.openwall.com/lists/kernel-hardening/2020/03/25/1 Exploit, Mailing List, Patch, Third Party Advisory
CVE Modified by MITRE 5/13/2020 3:15:11 AM
Action
Type
Old Value
New Value
Added
Reference
https://bugzilla.redhat.com/show_bug.cgi?id=1822077 [No Types Assigned]
Quick Info
CVE Dictionary Entry: CVE-2020-12826 NVD
Published Date: 05/12/2020 NVD
Last Modified: 11/21/2024
Source: MITRE
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