Vulnerability · Published Jul 22, 2021 · Assigned by mitre
CVE-2020-22283
High 7.5
In plain English
A high-severity security flaw in the lwip package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.4%top 27.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A buffer overflow vulnerability in the icmp6_send_response_with_addrs_and_netif() function of Free Software Foundation lwIP version git head allows attackers to access sensitive information via a crafted ICMPv6 packet.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | lwip | 2.1.3+dfsg1-1 | DEBIAN-CVE-2020-22283 |
| Debian:13 | lwip | 2.1.3+dfsg1-1 | DEBIAN-CVE-2020-22283 |
| Debian:14 | lwip | 2.1.3+dfsg1-1 | DEBIAN-CVE-2020-22283 |