| Name | CVE-2024-31031 |
| Description | An issue in `coap_pdu.c` in libcoap 4.3.4 allows attackers to cause undefined behavior via a sequence of messages leading to unsigned integer overflow. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1070362 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libcoap (PTS) | stretch | 4.1.2-1 | vulnerable |
| buster | 4.1.2-1 | fixed |
| libcoap2 (PTS) | buster | 4.2.0-2 | fixed |
| bullseye | 4.2.1-1 | fixed |
| libcoap3 (PTS) | bookworm | 4.3.1-1 | vulnerable |
| sid, trixie | 4.3.4-1.1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libcoap | source | stretch | (unfixed) | end-of-life | | |
| libcoap | source | (unstable) | (not affected) | | | |
| libcoap2 | source | (unstable) | (not affected) | | | |
| libcoap3 | source | (unstable) | (unfixed) | | | 1070362 |
Notes
- libcoap <not-affected> (Vulnerable code not present)
- libcoap2 <not-affected> (Vulnerable code not present)
[bookworm] - libcoap3 <ignored> (Minor issue, no reverse deps in Bookworm)
https://github.com/obgm/libcoap/issues/1351
https://github.com/obgm/libcoap/commit/214665ac4b44b1b6a7e38d4d6907ee835a174928 (develop)
Introduced by: https://github.com/obgm/libcoap/commit/7033555d2978b8d4d5e16d43cfbfe1b1781c418f (v4.3.0-rc1)
Introduced by: https://github.com/obgm/libcoap/commit/47a83549a80dad9a83f84cdfaba54c54defb5444 (v4.3.2-rc1)