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ubuntucveUbuntu.comUB:CVE-2020-12826
HistoryMay 12, 2020 - 12:00 a.m.

CVE-2020-12826

2020-05-1200:00:00
ubuntu.com
ubuntu.com
12

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS3

5.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS

0.001

Percentile

20.4%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-101.102UNKNOWN
ubuntu19.10noarchlinux< 5.3.0-53.47UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-31.35UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-184.214UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1067.71UNKNOWN
ubuntu19.10noarchlinux-aws< 5.3.0-1019.21UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1011.11UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1073.77UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1109.120UNKNOWN
ubuntu18.04noarchlinux-aws-5.3< 5.3.0-1019.21~18.04.1UNKNOWN
Rows per page:
1-10 of 471

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CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS3

5.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS

0.001

Percentile

20.4%

JSON
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