CVE-2021-43612
First published: Sat Apr 15 2023(Updated: )
In lldpd before 1.0.13, when decoding SONMP packets in the sonmp_decode function, it's possible to trigger an out-of-bounds heap read via short SONMP packets.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Lldpd Project Lldpd | <1.0.13 | |
| Fedoraproject Fedora | =36 | |
| Fedoraproject Fedora | =37 | |
| Fedoraproject Fedora | =38 |
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Reference Links
- https://github.com/lldpd/lldpd/commit/73d42680fce8598324364dbb31b9bc3b8320adf7
- https://github.com/lldpd/lldpd/compare/1.0.12...1.0.13
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/
- https://lldpd.github.io/security.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/
Frequently Asked Questions
What is CVE-2021-43612?
CVE-2021-43612 is a vulnerability in lldpd before version 1.0.13 that allows an out-of-bounds heap read via short SONMP packets.
How severe is CVE-2021-43612?
CVE-2021-43612 has a severity rating of 7.5 (High).
Which software versions are affected by CVE-2021-43612?
LLDPD versions up to but excluding 1.0.13 are affected by CVE-2021-43612, as well as Fedora 36, 37, and 38.
How can I fix CVE-2021-43612?
To fix CVE-2021-43612, update lldpd to version 1.0.13 or later. For Fedora, check for updates to the operating system.
Are there any additional resources about CVE-2021-43612?
Yes, you can find additional information about CVE-2021-43612 in the references provided: [Github Commit](https://github.com/lldpd/lldpd/commit/73d42680fce8598324364dbb31b9bc3b8320adf7), [Github Comparison](https://github.com/lldpd/lldpd/compare/1.0.12...1.0.13), [Fedora Security Announcement](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/).
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