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Vulnerability IntelligenceUBUNTU-CVE-2020-22283

UBUNTU-CVE-2020-22283

HIGH7.5

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 craf

Published Jul 22, 2021

Modified 1 weeks ago

Fix available

Details

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

lwip

Ubuntu Pro 20.04 LTS

Fixed in:

2.1.2+dfsg1-4ubuntu0.1~esm1

References

https://savannah.nongnu.org/bugs/index.php?58553

https://ubuntu.com/security/CVE-2020-22283

https://ubuntu.com/security/notices/USN-8423-1

https://www.cve.org/CVERecord?id=CVE-2020-22283

CVSS Analysis

CVSS v3.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

NoneA:N

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Upstream

Related

Ecosystems

Ubuntu Pro 20.04 LTS

Timeline

PublishedJul 22, 2021

ModifiedJun 17, 2026

UBUNTU-CVE-2020-22283 | Mondoo Vulnerability Intelligence