CVE-2023-38253
MEDIUMCVSS 5.5/10EPSS 0.35%
Last modified
CVE-2023-38253 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An out-of-bounds read flaw was found in w3m, in the growbuf_to_Str function in indep.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
Description
An out-of-bounds read flaw was found in w3m, in the growbuf_to_Str function in indep.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tats | W3m | 0.5.3\+git20230121 |
| Fedoraproject | Extra Packages For Enterprise Linux | 8.0 |
| Fedoraproject | Fedora | 38 |
| Redhat | Enterprise Linux | 6.0 |
References
- https://access.redhat.com/security/cve/CVE-2023-38253Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2222779Issue Tracking, Third Party Advisory
- https://github.com/tats/w3m/issues/271Exploit, Issue Tracking, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-38253Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2222779Issue Tracking, Third Party Advisory
- https://github.com/tats/w3m/issues/271Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-38253?
An out-of-bounds read flaw was found in w3m, in the growbuf_to_Str function in indep.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.
How severe is CVE-2023-38253?
CVE-2023-38253 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.
How do I fix CVE-2023-38253?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-38253?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST