Description
A vulnerability was found in obgm libcoap 4.3.4. It has been rated as critical. Affected by this issue is the function get_split_entry of the file src/coap_oscore.c of the component Configuration File Handler. The manipulation leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. VDB-252206 is the identifier assigned to this vulnerability.
References (5)
Core 5
Core References
Third Party Advisory vdb-entry
technical-description
https://vuldb.com/?id.252206
Permissions Required signature
permissions-required
https://vuldb.com/?ctiid.252206
Exploit, Patch issue-tracking
https://github.com/obgm/libcoap/issues/1310
Exploit, Issue Tracking exploit
issue-tracking
https://github.com/obgm/libcoap/issues/1310#issue-2099860835
Issue Tracking, Patch issue-tracking
patch
https://github.com/obgm/libcoap/pull/1311
Scores
CVSS v3
6.3
EPSS
0.0075
EPSS Percentile
50.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-121
CWE-787
Status
published
Products (1)
libcoap/libcoap
4.3.4
Published
Jan 27, 2024
Tracked Since
Feb 18, 2026