Use After Free in Freebsd
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 IPV6_2292PKTOPTIONS socket option set handler contained a race c…
Vulnerability class: Race Condition
EPSS: 0.331 (98.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Freebsd — versions 11.3, 11.4, 12.1
- N/a Freebsd — versions FreeBSD 12.1-RELEASE before p7, 11.4-RELEASE before p1, 11.3-RELEASE before p11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secteam@freebsd.org (Patch, x_refsource_MISC, Vendor Advisory)
- secteam@freebsd.org (x_refsource_CONFIRM, Third Party Advisory)
- secteam@freebsd.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-7457?
- CVE-2020-7457 is a high-severity vulnerability in Freebsd, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.1/10. Published 2020-07-09.
- How severe is CVE-2020-7457?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2020-7457 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.