CVE-2024-0962: obgm libcoap Configuration File coap_oscore.c get_split_entry stack-based overflow

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-01-27 · updated 2026-06-17
Weakness: CWE-121

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.

Affected products

libcoap: 4.3.4

References

https://github.com/obgm/libcoap/issues/1310
https://github.com/obgm/libcoap/issues/1310#issue-2099860835
https://github.com/obgm/libcoap/pull/1311
https://vuldb.com/?ctiid.252206
https://vuldb.com/?id.252206
https://github.com/obgm/libcoap/issues/1310
https://github.com/obgm/libcoap/issues/1310#issue-2099860835
https://github.com/obgm/libcoap/pull/1311
https://vuldb.com/?ctiid.252206
https://vuldb.com/?id.252206

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