CVE-2020-24339: altran picotcp Out-of-bounds Read
Vulnerability summary
CVE-2020-24339 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in altran picotcp. EPSS estimates a 2.79% chance of exploitation in the next 30 days, higher than 86.3% of scored vulnerabilities.
Timeline
- 11-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
2.79%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
0.00 pp
From 2.79% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Altran2 products
- picotcp≤ 1.7.0
- picotcp-ng≤ 1.7.0
1 vendor · 2 products
References
2 links
us-cert.cisa.gov/ics/advisories/icsa-20-343-01X Refsource MISCThird Party AdvisoryUS Government Resource