High severity7.5NVD Advisory· Published Jun 4, 2021· Updated Jun 17, 2026
CVE-2020-7469
CVE-2020-7469
Description
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.
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Affected products
22- cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*+ 19 more
- cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:beta1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:rc1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:rc2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p10:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p3:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p6:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p7:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p8:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p9:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*
- (no CPE)range: <12.2-STABLE r367402, <11.4-STABLE r368202, <12.2-RELEASE p1, <12.1-RELEASE p11, <11.4-RELEASE p5
- FreeBSD/FreeBSDdescription
Patches
Vulnerability mechanics
References
2- security.freebsd.org/advisories/FreeBSD-SA-20:31.icmp6.ascnvdVendor Advisory
- security.netapp.com/advisory/ntap-20210720-0001/nvdThird Party Advisory
News mentions
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