Ubuntu update for numpy

Published: 2022-12-07

Risk	Low
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2021-33430 CVE-2021-34141 CVE-2021-41495 CVE-2021-41496
CWE-ID	CWE-119 CWE-697 CWE-476
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Ubuntu Operating systems & Components / Operating system python3-numpy (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU61603

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33430

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the PyArray_NewFromDescr_int() function of ctors.c. A remote attacker can pass specially crafted data to the library and perform a denial of service (DoS) attack.

Mitigation

Update the affected package numpy to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.10

python3-numpy (Ubuntu package): before 1:1.21.5-1ubuntu22.10.1

External links

http://ubuntu.com/security/notices/USN-5763-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Incorrect Comparison

EUVDB-ID: #VU61602

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-34141

CWE-ID: CWE-697 - Incorrect Comparison

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incomplete string comparison in the numpy.core component in NumPy. A remote attacker can pass specific string objects to the library and perform a denial of service (DoS) attack.

Mitigation

Update the affected package numpy to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.10

python3-numpy (Ubuntu package): before 1:1.21.5-1ubuntu22.10.1

External links

http://ubuntu.com/security/notices/USN-5763-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) NULL pointer dereference

EUVDB-ID: #VU61605

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41495

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in numpy.sort in NumPy. A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Update the affected package numpy to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.10

python3-numpy (Ubuntu package): before 1:1.21.5-1ubuntu22.10.1

External links

http://ubuntu.com/security/notices/USN-5763-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Buffer overflow

EUVDB-ID: #VU61601

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41496

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the array_from_pyobj() function in fortranobject.c. A remote user can pass an array with negative values to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package numpy to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.10

python3-numpy (Ubuntu package): before 1:1.21.5-1ubuntu22.10.1

External links

http://ubuntu.com/security/notices/USN-5763-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.