CVE-2020-7462
Last modified
CVE-2020-7462 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In 11.4-PRERELEASE before r360733 and 11.3-RELEASE before p13, improper mbuf handling in the kernel causes a use-after-free bug by sending IPv6 Hop-by-Hop options over the loopback interface. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
Description
In 11.4-PRERELEASE before r360733 and 11.3-RELEASE before p13, improper mbuf handling in the kernel causes a use-after-free bug by sending IPv6 Hop-by-Hop options over the loopback interface. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | 11.3 |
| Freebsd | Freebsd | 11.4 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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- CVE-2020-7461In FreeBSD 12.1-STABLE before r365010, 11.4-STABLE before r3…7.3
- CVE-2020-7463In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r3…5.5
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