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MitreCVE-2021-36979

HistoryJul 20, 2021 - 7:15 a.m.

CVE-2021-36979

2021-07-2007:15:08

CWE-787

mitre

web.nvd.nist.gov

cve-2021-36979

unicorn engine

out-of-bounds write

security vulnerability

nvd

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

32.6%

JSON

Unicorn Engine 1.0.2 has an out-of-bounds write in tb_flush_armeb (called from cpu_arm_exec_armeb and tcg_cpu_exec_armeb).

Affected configurations

Nvd

Node

unicorn-engineunicorn_engineMatch1.0.2

Node

fedoraprojectfedoraMatch35

VendorProductVersionCPE
unicorn-engineunicorn_engine1.0.2cpe:2.3:a:unicorn-engine:unicorn_engine:1.0.2:*:*:*:*:*:*:*
fedoraprojectfedora35cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
unicorn-engine	unicorn_engine	1.0.2	cpe:2.3:a:unicorn-engine:unicorn_engine:1.0.2:::::::*
fedoraproject	fedora	35	cpe:2.3:o:fedoraproject:fedora:35:::::::*

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=30391

github.com/google/oss-fuzz-vulns/blob/main/vulns/unicorn/OSV-2020-2305.yaml

github.com/unicorn-engine/unicorn/commit/bf1713d9e011b55ca1f502a6779fc4722b4bb077

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZ6LOCJXHQVU6SCJLFDJINBOVJYYENLX/

Social References

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

32.6%

JSON

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