Bug 2416767 (CVE-2025-65495) - CVE-2025-65495 libcoap: libcoap denial of service
Summary: CVE-2025-65495 libcoap: libcoap denial of service
Keywords:
Status: NEW
Alias: CVE-2025-65495
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2416892 2416895 2416897
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-11-24 15:02 UTC by OSIDB Bzimport
Modified: 2025-11-24 22:42 UTC (History)
0 users

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2025-11-24 15:02:00 UTC 
Integer signedness error in tls_verify_call_back() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted TLS certificate that causes i2d_X509() to return -1 and be misused as a malloc() size parameter.
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