FreeBSD IPv6 Packet integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$5k-$25k0.00

Summaryinfo

A vulnerability was found in FreeBSD. It has been classified as critical. The impacted element is an unknown function of the component IPv6 Packet Handler. This manipulation causes integer overflow. This vulnerability is handled as CVE-2023-3107. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in FreeBSD (Operating System) (unknown version). Affected by this vulnerability is an unknown code block of the component IPv6 Packet Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect availability. The summary by CVE is:

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.

The weakness was released 08/02/2023. It is possible to read the advisory at security.FreeBSD.org. This vulnerability is known as CVE-2023-3107 since 06/05/2023. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/09/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Name

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/05/2023 🔍
08/02/2023 +58 days 🔍
08/02/2023 +0 days 🔍
07/09/2025 +707 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: security.FreeBSD.org
Status: Confirmed

CVE: CVE-2023-3107 (🔍)
GCVE (CVE): GCVE-0-2023-3107
GCVE (VulDB): GCVE-100-235891

Entryinfo

Created: 08/02/2023 09:19
Updated: 07/09/2025 16:56
Changes: 08/02/2023 09:19 (37), 08/24/2023 10:03 (9), 07/09/2025 16:56 (16)
Complete: 🔍
Cache ID: 216::103

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