CVE-2023-3107 json
Remote denial of service in IPv6 fragment reassembly
published 2023-08-01 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43794
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
A set of carefully crafted ipv6 packets can trigger an integer overflow in the calculation of a fragment reassembled packet's payload length field. This allows an attacker to trigger a kernel panic, resulting in a denial of service.
Patch / fix
- FreeBSD FreeBSD 12.4-RELEASE-p4, 13.1-RELEASE-p9, 13.2-RELEASE-p2
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- FreeBSD FreeBSD
Classification
- Weakness
-
- CWE-190 Integer Overflow or Wraparound
References
-
security.freebsd.org
/advisories/FreeBSD-SA-23:06.ipv6.asc
vendor-advisory, mitigation
-
security.netapp.com
/advisory/ntap-20230804-0001/
third-party-advisory
Sources
- CVE List CVE-2023-3107
- NVD CVE-2023-3107
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