Back
CVE-2020-7463
In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r364651, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before…
Medium5.5EPSS 0.40%
- Published
- Updated
- Reserved
- Assigned by
- freebsd
Description
In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r364651, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, improper handling in the kernel causes a use-after-free bug by sending large user messages from multiple threads on the same SCTP socket. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.40% · top 66% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
FreeBSD
- affected FreeBSD 12.1-RELEASE before p9, 11.4-RELEASE before p3, 11.3-RELEASE before p13
References (13)
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:25.sctp.asc (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT212317 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212319 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212325 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212323 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212324 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212321 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212318 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20210427 APPLE-SA-2021-04-26-1 iOS 14.5 and iPadOS 14.5 (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20210427 APPLE-SA-2021-04-26-2 macOS Big Sur 11.3 (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20210427 APPLE-SA-2021-04-26-9 iTunes 12.11.3 for Windows (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20210427 APPLE-SA-2021-04-26-8 iCloud for Windows 12.3 (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20210427 APPLE-SA-2021-04-26-7 Safari 14.1 (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-7463)Record last updated .