7.5
HIGH
CVE-2021-38593
Qt Raster Paint Engine Out-of-Bounds Write
Description

Qt 5.x before 5.15.6 and 6.x through 6.1.2 has an out-of-bounds write in QOutlineMapper::convertPath (called from QRasterPaintEngine::fill and QPaintEngineEx::stroke).

INFO

Published Date :

Aug. 12, 2021, 2:15 a.m.

Last Modified :

Feb. 3, 2024, 7:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-38593 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fedoraproject fedora
1 Qt qt

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-38593 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-38593 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 03, 2024

    Action Type Old Value New Value
    Added Reference MITRE https://security.gentoo.org/glsa/202402-03 [No types assigned]
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HY5YCSDCTLHVMP3OXOM6HNTWHV6DBHDX/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/HY5YCSDCTLHVMP3OXOM6HNTWHV6DBHDX/
  • Modified Analysis by [email protected]

    Jan. 19, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/HY5YCSDCTLHVMP3OXOM6HNTWHV6DBHDX/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/HY5YCSDCTLHVMP3OXOM6HNTWHV6DBHDX/ Mailing List, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 16, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/HY5YCSDCTLHVMP3OXOM6HNTWHV6DBHDX/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Jun. 03, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/ Third Party Advisory
    Changed Reference Type https://wiki.qt.io/Qt_5.15_Release#Known_Issues No Types Assigned https://wiki.qt.io/Qt_5.15_Release#Known_Issues Issue Tracking, Release Notes, Vendor Advisory
    Changed Reference Type https://www.qt.io/blog/qt-5.15-extended-support-for-subscription-license-holders No Types Assigned https://www.qt.io/blog/qt-5.15-extended-support-for-subscription-license-holders Release Notes
    Changed CPE Configuration OR *cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (including) 6.1.2 *cpe:2.3:a:qt:qt:6.2.0:alpha1:*:*:*:*:*:* *cpe:2.3:a:qt:qt:6.2.0:beta1:*:*:*:*:*:* *cpe:2.3:a:qt:qt:6.2.0:beta2:*:*:*:*:*:* OR *cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.15.6 *cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.1.2
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 03, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/ [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 13, 2022

    Action Type Old Value New Value
    Changed Description Qt 5.0.0 through 6.1.2 has an out-of-bounds write in QOutlineMapper::convertPath (called from QRasterPaintEngine::fill and QPaintEngineEx::stroke). Qt 5.x before 5.15.6 and 6.x through 6.1.2 has an out-of-bounds write in QOutlineMapper::convertPath (called from QRasterPaintEngine::fill and QPaintEngineEx::stroke).
    Added Reference https://www.qt.io/blog/qt-5.15-extended-support-for-subscription-license-holders [No Types Assigned]
    Added Reference https://wiki.qt.io/Qt_5.15_Release#Known_Issues [No Types Assigned]
  • Initial Analysis by [email protected]

    Aug. 20, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35566 No Types Assigned https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35566 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-903.yaml No Types Assigned https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-903.yaml Third Party Advisory
    Changed Reference Type https://github.com/qt/qtbase/commit/1ca02cf2879a5e1511a2f2109f0925cf4c892862 No Types Assigned https://github.com/qt/qtbase/commit/1ca02cf2879a5e1511a2f2109f0925cf4c892862 Patch, Third Party Advisory
    Changed Reference Type https://github.com/qt/qtbase/commit/202143ba41f6ac574f1858214ed8bf4a38b73ccd No Types Assigned https://github.com/qt/qtbase/commit/202143ba41f6ac574f1858214ed8bf4a38b73ccd Patch, Third Party Advisory
    Changed Reference Type https://github.com/qt/qtbase/commit/6b400e3147dcfd8cc3a393ace1bd118c93762e0c No Types Assigned https://github.com/qt/qtbase/commit/6b400e3147dcfd8cc3a393ace1bd118c93762e0c Patch, Third Party Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (including) 6.1.2 *cpe:2.3:a:qt:qt:6.2.0:alpha1:*:*:*:*:*:* *cpe:2.3:a:qt:qt:6.2.0:beta1:*:*:*:*:*:* *cpe:2.3:a:qt:qt:6.2.0:beta2:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-38593 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-38593 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.42 }} 0.03%

score

0.73996

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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