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ubuntucveUbuntu.comUB:CVE-2020-0306
HistorySep 17, 2020 - 12:00 a.m.

CVE-2020-0306

2020-09-1700:00:00
ubuntu.com
ubuntu.com
12
android-11
llvm
stack cookie
local privilege escalation
no user interaction

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.9

Confidence

High

EPSS

0

Percentile

5.1%

In LLVM, there is a possible ineffective stack cookie placement due to
stack frame double reservation. This could lead to local escalation of
privilege with no additional execution privileges needed. User interaction
is not needed for exploitation.Product: AndroidVersions: Android-11Android
ID: A-139666480

Notes

Author Note
sbeattie possibly a weak hardening measure allowing easier exploitation, and not a vulnerability in and of itself. But clarity is needed.
mdeslaur this CVE was assigned to Android, and there is no indication the llvm in Ubuntu is vulnerable to this issue. Marking as not-affected.

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.9

Confidence

High

EPSS

0

Percentile

5.1%