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This document lists errata items for FreeBSD 12.0-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 12.0-RELEASE will be maintained until the release of FreeBSD 13.0-RELEASE.
This errata document contains “late-breaking news” about FreeBSD 12.0-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version of this errata document actually distributed with the release (for example, on a CDROM distribution) will be out of date by definition, but other copies are kept updated on the Internet and should be consulted as the “current errata” for this release.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 12-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-18:15.bootpd | 19�December�2018 | Buffer overflow |
| FreeBSD-SA-19:01.syscall | 5�February�2019 | Kernel data register leak |
| FreeBSD-SA-19:02.fd | 5�February�2019 | File description reference count leak |
| FreeBSD-SA-19:03.wpa | 14�May�2019 | Multiple vulnerabilities |
| FreeBSD-SA-19:04.ntp | 14�May�2019 | Authenticated denial of service in ntpd(8) |
| FreeBSD-SA-19:05.pf | 14�May�2019 | IPv6 fragment reassembly panic in pf(4) |
| FreeBSD-SA-19:06.pf | 14�May�2019 | ICMP/ICMP6 packet filter bypass in pf(4) |
| FreeBSD-SA-19:07.mds | 14�May�2019 | Microarchitectural Data Sampling |
| FreeBSD-SA-19:08.rack | 19�June�2019 | Resource exhaustion in non-default RACK TCP stack |
| FreeBSD-SA-19:09.iconv | 2�July�2019 | iconv(3) buffer overflow |
| FreeBSD-SA-19:10.ufs | 2�July�2019 | Kernel stack disclosure |
| FreeBSD-SA-19:11.cd_ioctl | 2�July�2019 | Privilege escalation in cd(4) |
| FreeBSD-SA-19:12.telnet | 24�July�2019 | Multiple vulnerabilities |
| FreeBSD-SA-19:13.pts | 24�July�2019 | Write-after-free vulnerability |
| FreeBSD-SA-19:15.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-20:02.ipsec | 28�January�2020 | Missing anti-replay window check |
| FreeBSD-SA-20:03.thrmisc | 28�January�2020 | Kernel stack data disclosure |
| Errata | Date | Topic |
|---|---|---|
| FreeBSD-EN-19:01.cc_cubic | 9�January�2019 | Connection stalls with CUBIC congestion control |
| FreeBSD-EN-19:02.tcp | 9�January�2019 | TCP connections may stall and eventually fail in case of packet loss |
| FreeBSD-EN-19:03.sqlite | 9�January�2019 | sqlite update |
| FreeBSD-EN-19:04.tzdata | 9�January�2019 | Timezone database information update |
| FreeBSD-EN-19:06.dtrace | 5�February�2019 | DTrace incompatibility with SMAP-enabled systems |
| FreeBSD-EN-19:07.lle | 5�February�2019 | LLE table lookup code race condition |
| FreeBSD-EN-19:08.tzdata | 14�May�2019 | Timezone database information update |
| FreeBSD-EN-19:09.xinstall | 14�May�2019 | install(1) broken with partially matching relative paths |
| FreeBSD-EN-19:10.scp | 14�May�2019 | Insufficient filename validation in scp(1) client |
| FreeBSD-EN-19:11.net | 19�June�2019 | Incorrect locking in networking stack |
| FreeBSD-EN-19:12.tzdata | 2�July�2019 | Timezone database information update |
| FreeBSD-EN-19:13.mds | 24�July�2019 | System crash from Intel CPU vulnerability mitigation |
| FreeBSD-EN-19:14.epoch | 6�August�2019 | Incorrect locking |
| 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-19:19.loader | 12�November�2019 | UEFI Loader Memory Fragmentation |
| FreeBSD-EN-20:01.ssp | 28�January�2020 | Imprecise orderring of canary initialization |
| FreeBSD-EN-20:02.nmount | 28�January�2020 | Invalid pointer dereference |
[2018-12-11] Some Intel� J1900 systems may hang on boot
in UEFI mode. An observed workaround is
to set kern.vty=sc at the loader(8)
prompt. To have the setting persist after reboot(8),
add kern.vty=sc to
loader.conf(5).
See PR 230172 for more information.
[2018-12-11] OpenSSL version 1.1.1 disables use of hardware cryptography accelerator cards provided by crypto(4) by default. Systems that have cryptography devices such as hifn(4), padlock(4), safe(4), and ubsec(4) currently will not take advantage of hardware cryptography offloading.
It is currently unclear if an Errata Notice will be issued to re-enable use of crypto(4).
[2018-12-13] Due to the size of the base system of FreeBSD�12.0, the disc1.iso images for amd64 and i386 do not fit onto a 700�MB CD-ROM. As of FreeBSD�12.0-RELEASE, however, disc1.iso for these architectures can be written to a flash drive, or to a DVD.
See PR 233989 for more information.
[2018-12-13] Some users have reported
FreeBSD�12.0-RELEASE boot messages do not report
CPUs other than CPU0.
This is expected behavior introduced in
r333334, and results in boot-time
reduction.
[2018-12-13] The FreeBSD�12.0 release notes mention
use of graphics/drm-stable-kmod and
graphics/drm-legacy-kmod
for modern graphics cards. These ports have been changed to
a "meta port" in the Ports Collection, and will be
renamed in the 2019Q1 quarterly branch,
after which graphics/drm-kmod should be used
instead.