CVE catalog
CVE-2020-22283
lwIP vulnerabilities
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.38% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | lwip | sid | 2.2.1+dfsg1-9 | fixed |
| Debian | lwip | forky | 2.2.1+dfsg1-8 | fixed |
| Debian | lwip | trixie | 2.2.1+dfsg1-1+deb13u1 | fixed |
| Debian | lwip | bookworm | 2.1.3+dfsg1-2 | fixed |
| Ubuntu | lwip | noble | 2.2.0+dfsg1-6.1ubuntu0.1~esm1 | fixed |
| Ubuntu | liblwip-dev | noble | 2.2.0+dfsg1-6.1ubuntu0.1~esm1 | fixed |
| Ubuntu | liblwip-doc | noble | 2.2.0+dfsg1-6.1ubuntu0.1~esm1 | fixed |
| Ubuntu | liblwip0t64 | noble | 2.2.0+dfsg1-6.1ubuntu0.1~esm1 | fixed |
| Ubuntu | lwip | pro | 2.2.1+dfsg1-2 | vulnerable |
| Ubuntu | lwip | pro | 2.2.1+dfsg1-3 | vulnerable |
| Ubuntu | lwip | pro | 2.2.1+dfsg1-4 | vulnerable |
| Ubuntu | lwip | pro | 2.2.1+dfsg1-4ubuntu0.1~esm1 | fixed |
| Ubuntu | lwip | pro | 2.1.2-3 | vulnerable |
| Ubuntu | lwip | pro | 2.1.2-5.1 | vulnerable |
| Ubuntu | lwip | pro | 2.1.2+dfsg1-1 | vulnerable |
| Ubuntu | lwip | pro | 2.1.2+dfsg1-4 | vulnerable |
| Ubuntu | lwip | pro | 2.1.2+dfsg1-4ubuntu0.1~esm1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lwip | source | sid | 2.1.3+dfsg1-1 | not yet assigned | Not reported | [991645] |
| Debian | lwip | source | forky | 2.1.3+dfsg1-1 | not yet assigned | Not reported | [991645] |
| Debian | lwip | source | trixie | 2.1.3+dfsg1-1 | not yet assigned | Not reported | [991645] |
| Debian | lwip | source | bookworm | 2.1.3+dfsg1-1 | not yet assigned | Not reported | [991645] |
| Ubuntu | lwip | deb | noble | 2.2.0+dfsg1-6.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | liblwip-dev | deb | noble | 2.2.0+dfsg1-6.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | liblwip-doc | deb | noble | 2.2.0+dfsg1-6.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | liblwip0t64 | deb | noble | 2.2.0+dfsg1-6.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | lwip | deb | pro | 2.2.1+dfsg1-4ubuntu0.1~esm1 | Not reported | USN-8423-1 | Not reported |
| Ubuntu | lwip | deb | pro | 2.1.2+dfsg1-4ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2020-22283 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [liblwip0]Fixed
Source package: [lwip]
Details (2)
2.1.3+dfsg1-2· amd64 · bookwormFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · bookworm; usn · lwip · debian · 12
2.1.3+dfsg1-2· arm64 · bookwormFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · bookworm; usn · lwip · debian · 12
- [liblwip-dev]Fixed
Source package: [lwip]
Details (2)
2.1.3+dfsg1-2· amd64 · bookwormFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · bookworm; usn · lwip · debian · 12
2.1.3+dfsg1-2· arm64 · bookwormFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · bookworm; usn · lwip · debian · 12
- [liblwip-doc]Fixed
Source package: [lwip]
Details (2)
2.1.3+dfsg1-2· all · bookwormFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · bookworm; usn · lwip · debian · 12
2.1.3+dfsg1-2· all · bookwormFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · bookworm; usn · lwip · debian · 12
[Debian 13 (Trixie)]
- [liblwip0t64]Fixed
Source package: [lwip]
Details (2)
2.2.1+dfsg1-1· amd64 · trixieFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · 13
2.2.1+dfsg1-1· arm64 · trixieFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · 13
- [liblwip-dev]Fixed
Source package: [lwip]
Details (2)
2.2.1+dfsg1-1· amd64 · trixieFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · 13
2.2.1+dfsg1-1· arm64 · trixieFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · 13
- [liblwip-doc]Fixed
Source package: [lwip]
Details (2)
2.2.1+dfsg1-1· all · trixieFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · 13
2.2.1+dfsg1-1· all · trixieFixed · Fixed:
2.1.3+dfsg1-1usn · lwip · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-22283]
- [https://osv.dev/vulnerability/DLA-3655-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-22283]
- [https://osv.dev/vulnerability/USN-8423-1]
- [https://security-tracker.debian.org/tracker/CVE-2020-22283]
- [https://ubuntu.com/security/notices/USN-8423-1]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Ubuntu Security Notices (USN)]