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             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.6856
                           lwip security update
                             20 November 2023

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           lwip
Publisher:         Debian
Operating System:  Debian GNU/Linux
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-22283  

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2023/11/msg00011.html

Comment: CVSS (Max):  7.5 CVE-2020-22283 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
         CVSS Source: NIST
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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Debian LTS Advisory DLA-3655-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                         Tobias Frost
November 18, 2023                             https://wiki.debian.org/LTS
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Package        : lwip
Version        : 2.0.3-3+deb10u2
CVE ID         : CVE-2020-22283
Debian Bug     : 991646

A buffer overflow vulnerability has been found in lwip, a small independent
implementation of the TCP/IPv4/IPv6 protocol suite, which allows an attacker
to access information via a crafted ICMPv6 package. This vulnerability
has been assigned CVE-2020-22283.

For Debian 10 buster, this problem has been fixed in version
2.0.3-3+deb10u2.

We recommend that you upgrade your lwip packages.

For the detailed security status of lwip please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/lwip

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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===========================================================================
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The University of Queensland
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