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This document lists errata items for FreeBSD 11.4-RELEASE, containing significant information discovered after the release or too late in the release cycle to be otherwise included in the release documentation. This information includes security advisories, as well as news relating to the software or documentation that could affect its operation or usability. An up-to-date version of this document should always be consulted before installing this version of FreeBSD.
This errata document for FreeBSD 11.4-RELEASE will be maintained until FreeBSD 11.4-RELEASE reaches end-of-life.
This errata document contains “late-breaking news” about FreeBSD 11.4-RELEASE. Before installing this version, it is important to consult this document to learn about any post-release discoveries or problems that may already have been found and fixed.
Any version of this errata document actually distributed with the release (for example, on a CDROM distribution) will be out of date by definition, but other copies are kept updated on the Internet and should be consulted as the “current errata” for this release. These other copies of the errata are located at https://www.FreeBSD.org/releases/, plus any sites which keep up-to-date mirrors of this location.
Source and binary snapshots of FreeBSD 11.4-STABLE also contain up-to-date copies of this document (as of the time of the snapshot).
For a list of all FreeBSD CERT security advisories, see https://www.FreeBSD.org/security/.
| Advisory | Date | Topic |
|---|---|---|
| FreeBSD-SA-19:12.telnet | 24 July 2019 | Multiple vulnerabilities |
| FreeBSD-SA-19:13.pts | 24 July 2019 | Write-after-free vulnerability |
| FreeBSD-SA-19:14.freebsd32 | 24 July 2019 | Kernel memory disclosure |
| FreeBSD-SA-19:15.mqueuefs | 24 July 2019 | Reference count overflow |
| FreeBSD-SA-19:16.bhyve | 24 July 2019 | xhci(4) out-of-bounds read |
| FreeBSD-SA-19:17.fd | 24 July 2019 | Reference count leak |
| FreeBSD-SA-19:18.bzip2 | 6 August 2019 | Multiple vulnerabilities |
| FreeBSD-SA-19:19.mldv2 | 6 August 2019 | Out-of-bounds memory access |
| FreeBSD-SA-19:20.bsnmp | 6 August 2019 | Insufficient message length validation |
| FreeBSD-SA-19:21.bhyve | 6 August 2019 | Insufficient validation of guest-supplied data |
| FreeBSD-SA-19:22.mbuf | 20 August 2019 | IPv6 remove denial-of-service |
| FreeBSD-SA-19:23.midi | 20 August 2019 | Kernel memory disclosure |
| FreeBSD-SA-19:24.mqueuefs | 20 August 2019 | Reference count overflow |
| FreeBSD-SA-19:25.mcepce | 12 November 2019 | Machine Check Exception on Page Size Change |
| FreeBSD-SA-19:26.mcu | 12 November 2019 | Intel CPU Microcode Update |
| FreeBSD-SA-20:01.libfetch | 28 January 2020 | fetch(3) buffer overflow |
| FreeBSD-SA-20:03.thrmisc | 28 January 2020 | Kernel stack data disclosure |
| FreeBSD-SA-20:04.tcp | 18 March 2020 | TCP IPv6 SYN cache kernel information disclosure |
| FreeBSD-SA-20:05.if_oce_ioctl | 18 March 2020 | Insufficient ioctl(2) privilege checking |
| FreeBSD-SA-20:07.epair | 18 March 2020 | Incorrect user-controlled pointer use |
| FreeBSD-SA-20:08.jail | 18 March 2020 | Kernel memory disclosure with nested jails |
| FreeBSD-SA-20:09.ntp | 18 March 2020 | Multiple denial of service |
| FreeBSD-SA-20:10.ipfw | 21 April 2020 | Invalid mbuf(9) handling |
| FreeBSD-SA-20:12.libalias | 12 May 2020 | Insufficient packet length - validation |
| FreeBSD-SA-20:13.libalias | 12 May 2020 | Memory disclosure vulnerability |
| Errata | Date | Topic |
|---|---|---|
| FreeBSD-EN-19:13.mds | 24 July 2019 | System crash from Intel CPU vulnerability + validation |
| FreeBSD-SA-20:13.libalias | 12 May 2020 | Memory disclosure vulnerability |
| FreeBSD-SA-20:17.usb | 9 June 2020 | HID descripter parsing + error |
| Errata | Date | Topic |
|---|---|---|
| FreeBSD-EN-19:13.mds | 24 July 2019 | System crash from Intel CPU vulnerability mitigation |
| FreeBSD-EN-19:15.libunwind | 6 August 2019 | Incorrect exception handling |
| FreeBSD-EN-19:16.bhyve | 20 August 2019 | Instruction emulation improvements |
| FreeBSD-EN-19:17.ipfw | 20 August 2019 | "jail" keyword fix |
| FreeBSD-EN-19:18.tzdata | 23 October 2019 | Timezone database information update |
| FreeBSD-EN-20:01.ssp | 28 January 2020 | Imprecise orderring of canary initialization |
| FreeBSD-EN-20:02.nmount | 28 January 2020 | Invalid pointer dereference |
| FreeBSD-EN-20:04.pfctl | 18 March 2020 | Missing pfctl(8) tunable |
| FreeBSD-EN-20:06.ipv6 | 18 March 2020 | Incorrect checksum calculations |
| FreeBSD-EN-20:07.quotad | 21 April 2020 | Regression with certain NFS servers |
This file, and other release-related documents, can be downloaded from https://www.FreeBSD.org/snapshots/.
For questions about FreeBSD, read the documentation before contacting <questions@FreeBSD.org>.
All users of FreeBSD 11.4-STABLE should subscribe to the <stable@FreeBSD.org> mailing list.
For questions about this documentation, e-mail <doc@FreeBSD.org>.
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