CVE-2020-24340

Source
https://cve.org/CVERecord?id=CVE-2020-24340
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24340.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-24340
Published
2020-12-11T23:15:14Z
Modified
2026-07-08T17:56:44Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The code that processes DNS responses in pico_mdns_handle_data_as_answers_generic() in pico_mdns.c does not check whether the number of answers/responses specified in a DNS packet header corresponds to the response data available in the packet, leading to an out-of-bounds read, invalid pointer dereference, and Denial-of-Service.

References

Affected packages

Git / github.com/tass-belgium/picotcp

Affected ranges

Type
GIT
Repo
https://github.com/tass-belgium/picotcp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
Database specific
Show details
{
    "cpe": "cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.7.0"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

V1.*
V1.0
V1.2.4
Other
sprint0
sprint1
sprint2
sprint3
sprint4
sprint5
sprint6
sprint7
sprint8
v1.*
v1.2
v1.2.1
v1.2.2
v1.3.0
v1.5.0
v1.5.1
v1.6.0
v1.6.1
v1.6.2
v1.7.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24340.json"

Git / github.com/virtualsquare/picotcp

Affected ranges

Type
GIT
Repo
https://github.com/virtualsquare/picotcp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
Database specific
Show details
{
    "cpe": "cpe:2.3:a:altran:picotcp-ng:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.7.0"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

V1.*
V1.0
V1.2.4
Other
sprint0
sprint1
sprint2
sprint3
sprint4
sprint5
sprint6
sprint7
sprint8
v1.*
v1.2
v1.2.1
v1.2.2
v1.3.0
v1.5.0
v1.5.1
v1.6.0
v1.6.1
v1.6.2
v1.7.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24340.json"