CVE-2020-7469
mediumpriority · track · 30EPSS 0.012 · 69 %ileEURUUSEPSS · scored 2026-10-27
In FreeBSD 12.2-STABLE before r367402, 11.4-STABLE before r368202, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 the handler for a routing option caches a pointer into the packet buffer holding the ICMPv6 message. However, when processing subsequent options the packet buffer may be freed, rendering the cached pointer invalid. The network stack may later dereference the pointer, potentially triggering a use-after-free.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
- n/a FreeBSD≤ FreeBSD 12.2-RELEASE before p1, 12.1-RELEASE before p11, 11.4-RELEASE before p5enisa_euvdEU
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.asccnnvd
- https://security.netapp.com/advisory/ntap-20210720-0001/cnnvd
- https://vigilance.fr/vulnerability/FreeBSD-use-after-free-via-ICMPv6-34022cnnvd
- https://www.freebsd.org/security/advisories/FreeBSD-SA-20:32.rtsold.ascPatchcnnvd
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.ascenisa_euvd
- https://security.netapp.com/advisory/ntap-20210720-0001/enisa_euvd
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.ascVendor Advisorynvd
- https://security.netapp.com/advisory/ntap-20210720-0001/Third Party Advisorynvd
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