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Debian Security Bug TrackerDEBIANCVE:CVE-2024-8948

HistorySep 17, 2024 - 7:15 p.m.

CVE-2024-8948

2024-09-1719:15:29

Debian Security Bug Tracker

security-tracker.debian.org

micropython

vulnerability

critical

heap-based buffer overflow

mpz_as_bytes

remote attack

patch

908ab1ceca15ee6fd0ef82ca4cba770a3ec41894

objint component

conversion

unix

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

CVSS4

6.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/SC:N/VI:L/SI:N/VA:L/SA:N

AI Score

7.2

Confidence

Low

EPSS

0.001

Percentile

20.9%

JSON

A vulnerability was found in MicroPython 1.23.0. It has been rated as critical. Affected by this issue is the function mpz_as_bytes of the file py/objint.c. The manipulation leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The patch is identified as 908ab1ceca15ee6fd0ef82ca4cba770a3ec41894. It is recommended to apply a patch to fix this issue. In micropython objint component, converting zero from int to bytes leads to heap buffer-overflow-write at mpz_as_bytes.

OSVersionArchitecturePackageVersionFilename
Debian999allmicropython<= 1.22.1+ds-1micropython_1.22.1+ds-1_all.deb
Debian13allmicropython<= 1.22.1+ds-1micropython_1.22.1+ds-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	999	all	micropython	<= 1.22.1+ds-1	micropython_1.22.1+ds-1_all.deb
Debian	13	all	micropython	<= 1.22.1+ds-1	micropython_1.22.1+ds-1_all.deb

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

CVSS4

6.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/SC:N/VI:L/SI:N/VA:L/SA:N

AI Score

7.2

Confidence

Low

EPSS

0.001

Percentile

20.9%

JSON

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