CVE-2020-24338
CRITICAL
9.8
CVSS Score
Published: December 11, 2020 at 10:45 PM UTC
Updated: June 17, 2026 at 03:05 AM UTC
1 product affected across 1 vendorPicotcp
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Severity
CRITICAL9.8
Exploit prediction
EPSS 37%
Description
An issue was discovered in picoTCP 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 writes that lead to Denial-of-Service and Remote Code Execution.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://www.kb.cert.org/vuls/id/815128CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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