CVE-2024-0962 json
obgm libcoap Configuration File coap_oscore.c get_split_entry stack-based overflow
published 2024-01-27 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-16740
- cvss
- 6.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- libcoap3 Debian 13 4.3.4-1.1+deb13u1
- libcoap3 Debian 14 4.3.5-1
debian advisories DEBIAN-CVE-2024-0962
- github.com/obgm/libcoap/issues/1310 patch
- github.com/obgm/libcoap#1311 pull request
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/obgm/libcoap/issues/1310 referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/obgm/libcoap/issues/1310#issue-2099860835 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
| CNA | 3.0 | 6.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
| CNA | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- obgm libcoap
Classification
References
-
github.com
/obgm/libcoap/pull/1311
issue-tracking, patch
-
github.com
/obgm/libcoap/issues/1310
issue-tracking, exploit, patch
-
github.com
/obgm/libcoap/issues/1310#issue-2099860835
exploit, issue-tracking
-
vuldb.com
/?id.252206
vdb-entry, technical-description, third-party-advisory
-
vuldb.com
/?ctiid.252206
signature, permissions-required
Sources
- CVE List CVE-2024-0962
- NVD CVE-2024-0962
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.