Gentoo update for Pillow

Published: 2022-11-22

Risk	High
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2021-23437 CVE-2021-34552 CVE-2022-22815 CVE-2022-22816 CVE-2022-22817 CVE-2022-24303 CVE-2022-45198 CVE-2022-45199
CWE-ID	CWE-185 CWE-119 CWE-22 CWE-125 CWE-749 CWE-20 CWE-399 CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Gentoo Linux Operating systems & Components / Operating system dev-python/pillow Operating systems & Components / Operating system package or component
Vendor	Gentoo

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Incorrect Regular Expression

EUVDB-ID: #VU68608

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23437

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation when processing regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Update the affected packages.
dev-python/pillow to version: 9.3.0

Vulnerable software versions

Gentoo Linux: All versions

dev-python/pillow: before 9.3.0

External links

http://security.gentoo.org/glsa/202211-10

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) Buffer overflow

EUVDB-ID: #VU68607

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-34552

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker with ability to pass controlled parameters directly into a convert function can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages.
dev-python/pillow to version: 9.3.0

Vulnerable software versions

Gentoo Linux: All versions

dev-python/pillow: before 9.3.0

External links

http://security.gentoo.org/glsa/202211-10

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) Path traversal

EUVDB-ID: #VU60001

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22815

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in path_getbbox() function in path.c. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Update the affected packages.
dev-python/pillow to version: 9.3.0

Vulnerable software versions

Gentoo Linux: All versions

dev-python/pillow: before 9.3.0

External links

http://security.gentoo.org/glsa/202211-10

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) Out-of-bounds read

EUVDB-ID: #VU60002

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22816

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to buffer over-read during initialization of ImagePath.Path in path_getbbox() function in path.c. A remote attacker can pass a specially crafted file to the affected library and read contents of memory on the system.

Mitigation

Update the affected packages.
dev-python/pillow to version: 9.3.0

Vulnerable software versions

Gentoo Linux: All versions

dev-python/pillow: before 9.3.0

External links

http://security.gentoo.org/glsa/202211-10

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.

5) Exposed dangerous method or function

EUVDB-ID: #VU60003

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22817

CWE-ID: CWE-749 - Exposed Dangerous Method or Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to usage of PIL.ImageMath.eval() function on arbitrary expressions. A remote attacker can pass specially crafted file to the library and execute arbitrary code on the system.

Mitigation

Update the affected packages.
dev-python/pillow to version: 9.3.0

Vulnerable software versions

Gentoo Linux: All versions

dev-python/pillow: before 9.3.0

External links

http://security.gentoo.org/glsa/202211-10

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.

6) Input validation error

EUVDB-ID: #VU69497

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24303

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to delete arbitrary files on the system.

The vulnerability exists due to input validation error when processing spaces in path to the temporary directory on Linux or macOS. A remote attacker can pass a specially crafted file to the application and delete arbitrary files on the system.

Mitigation

Update the affected packages.
dev-python/pillow to version: 9.3.0

Vulnerable software versions

Gentoo Linux: All versions

dev-python/pillow: before 9.3.0

External links

http://security.gentoo.org/glsa/202211-10

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.

7) Resource management error

EUVDB-ID: #VU69498

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-45198

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources when handing highly compressed GIF data. A remote attacker can pass specially crafted GIF file to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.
dev-python/pillow to version: 9.3.0

Vulnerable software versions

Gentoo Linux: All versions

dev-python/pillow: before 9.3.0

External links

http://security.gentoo.org/glsa/202211-10

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.

8) Resource exhaustion

EUVDB-ID: #VU69499

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-45199

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources within the TiffImagePlugin.py when setting up the context for image decoding. A remote attacker can trigger resource exhaustion via a large value in the SAMPLESPERPIXEL tag and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.
dev-python/pillow to version: 9.3.0

Vulnerable software versions

Gentoo Linux: All versions

dev-python/pillow: before 9.3.0

External links

http://security.gentoo.org/glsa/202211-10

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.