Vulnerability · Published Aug 6, 2020 · Assigned by freebsd

CVE-2020-7460

High 7.0

In plain English

A high-severity security flaw in FreeBSD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS NVD)7.0High

Exploit odds (30 days)0.7%top 46.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.

Affected products (as reported)

Vendor	Product	Versions
n/a	FreeBSD	FreeBSD 12.1-RELEASE before p8, 11.4-RELEASE before p2, 11.3-RELEASE before p12

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:23.sendmsg.asc x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-20-949/ x_refsource_MISC
https://security.netapp.com/advisory/ntap-20200821-0005/ x_refsource_CONFIRM