CVE-2023-38197
qtbase: infinite loops in QXmlStreamReader
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.
A vulnerability was found in Qtbase, where it is vulnerable to a denial of service caused by an infinite loop flaw in the QXmlStreamReader() function. This flaw occurs because the QXmlStreamReader function accepts multiple DOCTYPE elements containing DTD fragments in the XML prolog and the XML body. Well-formed but invalid XML files - with multiple DTD fragments in prolog and body, combined with recursive entity expansions, causes infinite loops in QXmlStreamReader. By persuading a victim to open specially crafted XML content, an attacker can cause a denial of service condition.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-07-13 CVE Reserved
- 2023-07-13 CVE Published
- 2024-08-02 CVE Updated
- 2024-10-17 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://codereview.qt-project.org/c/qt/qtbase/+/488960 | 2024-05-01 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Qt Search vendor "Qt" | Qt Search vendor "Qt" for product "Qt" | < 5.15.15 Search vendor "Qt" for product "Qt" and version " < 5.15.15" | - |
Affected
| ||||||
| Qt Search vendor "Qt" | Qt Search vendor "Qt" for product "Qt" | >= 6.0.0 < 6.2.10 Search vendor "Qt" for product "Qt" and version " >= 6.0.0 < 6.2.10" | - |
Affected
| ||||||
| Qt Search vendor "Qt" | Qt Search vendor "Qt" for product "Qt" | >= 6.3.0 < 6.5.3 Search vendor "Qt" for product "Qt" and version " >= 6.3.0 < 6.5.3" | - |
Affected
| ||||||