PT-2023-25351 · Libcoap · Libcoap

Mrdeep1 · Published 2023-06-19 · Updated 2023-06-27 · CVE-2023-35862

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libcoap version 4.3.1

Description The issue is related to a buffer over-read in the coap parse oscore conf mem function located at coap oscore.c. This function is part of the libcoap library.

Recommendations For libcoap version 4.3.1, consider disabling the coap parse oscore conf mem function as a temporary workaround until a patch is available.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2023-35862

Affected Products

Libcoap

References · 10

• 🔥 https://github.com/obgm/libcoap/issues/1117 · Exploit
• https://github.com/obgm/libcoap/pull/1118 · Patch
• https://ubuntu.com/security/CVE-2023-35862 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-35862 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-35862 · Security Note
• https://osv.dev/vulnerability/CVE-2023-35862 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-35862 · Security Note
• https://github.com/obgm/libcoap/tags · Note
• https://t.me/cvenotify/52609 · Telegram Post
• https://t.me/cvenotify/53129 · Telegram Post