High severity · published Jul 9, 2020
CVE-2020-7457
In FreeBSD 12.1-STABLE before r359565, 12.1-RELEASE before p7, 11.4-STABLE before r362975, 11.4-RELEASE before p1, and 11.3-RELEASE before p11, missing synchronization in the…
8.1
CVSS
33.1%
EPSS
No
On KEV
Description
In FreeBSD 12.1-STABLE before r359565, 12.1-RELEASE before p7, 11.4-STABLE before r362975, 11.4-RELEASE before p1, and 11.3-RELEASE before p11, missing synchronization in the IPV6_2292PKTOPTIONS socket option set handler contained a race condition allowing a malicious application to modify memory after being freed, possibly resulting in code execution.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)33.1% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
11.3; 11.3; 11.3; 11.3; 11.3; 11.3; +15 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7457
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-7457
Exploit
http://packetstormsecurity.com/files/158695/FreeBSD-ip6_setpktopt-Use-After-Free-Privilege-Escalation.html
Patch
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:20.ipv6.asc
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200724-0002/
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