High severity · published Jun 4, 2021
CVE-2020-7469
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…
7.5
CVSS
1.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CD
Clustered Data Ontap · Netapp
All versions, or not specified · source: NVD
FR
Freebsd · Freebsd
11.4; 11.4; 11.4; 11.4; 11.4; 11.4; +13 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7469
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-7469
Vendor Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.asc
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210720-0001/
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