Vulnerability Details : CVE-2020-24339
An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The DNS domain name record decompression functionality in pico_dns_decompress_name() in pico_dns_common.c does not validate the compression pointer offset values with respect to the actual data present in a DNS response packet, causing out-of-bounds reads that lead to Denial-of-Service.
Vulnerability category: Denial of service
Products affected by CVE-2020-24339
- cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*
- cpe:2.3:a:altran:picotcp-ng:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-24339
0.50%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 63 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-24339
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-24339
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-24339
-
https://www.kb.cert.org/vuls/id/815128
VU#815128 - Embedded TCP/IP stacks have memory corruption vulnerabilitiesThird Party Advisory;US Government Resource
-
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
Multiple Embedded TCP/IP Stacks | CISAThird Party Advisory;US Government Resource
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