CVE-2023-38253

W3m: out of bounds read in growbuf_to_str() at w3m/indep.c

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.

Affected

Red Hat · Fedora · w3m · Red Hat Enterprise Linux 6 · Extra Packages for Enterprise Linux

CVSS v3.1 NVD

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 REDHAT

4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.36% chance of exploitation in the next 30 days, 28th percentile

Published

2023-07-14

Updated

2025-02-13

Proof-of-concept exploits (1)

• tats/w3m/issues/2711084★ · 2024-08-19

Security advisories

• https://access.redhat.com/security/cve/CVE-2023-38253
• https://bugzilla.redhat.com/show_bug.cgi?id=2222779

References

• CVE Record
• NVD entry

Related

• CVE-2022-38223
• CVE-2023-38252
• CVE-2023-4255