CVE-2020-7469

moderate-risk
Published 2021-06-04

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.

Do I need to act?

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0.54% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

Freebsd Netapp

References (4)

Vendor Advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.asc
Third Party Advisory https://security.netapp.com/advisory/ntap-20210720-0001/
Vendor Advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.asc
Third Party Advisory https://security.netapp.com/advisory/ntap-20210720-0001/
48
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 2/34 · Minimal
Exposure 20/34 · Moderate