Pixman up to 0.42.1 libpixman rasterize_edges_8 out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Pixman up to 0.42.1. It has been classified as critical. This vulnerability affects the function rasterize_edges_8 of the component libpixman. This manipulation causes out-of-bounds write. This vulnerability is registered as CVE-2022-44638. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Pixman up to 0.42.1. It has been declared as critical. Affected by this vulnerability is the function rasterize_edges_8 of the component libpixman. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow in pixman_sample_floor_y.

The weakness was published 11/03/2022 as 63. It is possible to read the advisory at gitlab.freedesktop.org. This vulnerability is known as CVE-2022-44638 since 11/03/2022. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 211070 (Fedora 37 : mingw-pixman (2022-f3a939e960)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.42.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (211070). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211070
Nessus Name: Fedora 37 : mingw-pixman (2022-f3a939e960)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Pixman 0.42.2

Timelineinfo

11/03/2022 🔍
11/03/2022 +0 days 🔍
11/03/2022 +0 days 🔍
05/03/2025 +912 days 🔍

Sourcesinfo

Advisory: 63
Status: Confirmed

CVE: CVE-2022-44638 (🔍)
GCVE (CVE): GCVE-0-2022-44638
GCVE (VulDB): GCVE-100-212875

Entryinfo

Created: 11/03/2022 12:38
Updated: 05/03/2025 03:04
Changes: 11/03/2022 12:38 (41), 12/04/2022 09:52 (12), 11/17/2024 18:20 (16), 05/03/2025 03:04 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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