{"id":110888,"date":"2023-10-17T03:10:16","date_gmt":"2023-10-17T01:10:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-openbsd-7-4"},"modified":"2023-10-17T03:10:16","modified_gmt":"2023-10-17T01:10:16","slug":"vypusk-openbsd-7-4","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/vypusk-openbsd-7-4","title":{"rendered":"OpenBSD 7.4 v\u00e4ljalase","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Avalikustatud on vabavaraline UNIX-laadne operatsioonis\u00fcsteem OpenBSD 7.4. OpenBSD projekt loodi Theo de Raadti poolt 1995. aastal p\u00e4rast konflikti NetBSD arendajatega, mille t\u00f5ttu kadus Theol juurdep\u00e4\u00e4s CVS hoidla NetBSD. P\u00e4rast seda moodustas Theo de Raadt koos toredate inimestega uue avatud operatsioonis\u00fcsteemi, mis p\u00f5hines NetBSD allikate puul. Selle arengu peamised eesm\u00e4rgid olid portatiivsus (toetatakse 13 riistvaraplatvormi), standardiseerimine, t\u00e4pne t\u00f6\u00f6, proaktiivne turvalisus ja integreeritud kr\u00fcptograafilised vahendid. OpenBSD 7.4 p\u00f5hikerija t\u00e4ieliku installatsioon ISO-faili suurus on 630 MB.       <\/p>\n<p>Lisaks operatsioonis\u00fcsteemile on OpenBSD projekt tuntud ka oma komponentide poolest, mis on levinud teistes s\u00fcsteemides ning on osutunud \u00fchtedeks turvalisemateks ja kvaliteetsemateks lahendusteks. Nende hulka kuuluvad: LibreSSL (OpenSSL fork), OpenSSH, pakifilter PF, marsruutademonid OpenBGPD ja OpenOSPFD, NTP-server OpenNTPD, postiserver OpenSMTPD, teksti terminali multiplexer (sarnane GNU screen'ile) tmux, identd demon, mis rakendab IDENT protokolli, BSDL alternatiiv GNU groff paketile - mandoc, protokoll talitluse usaldusv\u00e4\u00e4rsuse tagamiseks CARP (Common Address Redundancy Protocol), kergekaaluline http-server, failide s\u00fcnkroonimise utiliit OpenRSYNC.          <\/p>\n<p>Peamised parandused:   <\/p>\n<ul>\n<li class=\"l\"> Arhitektuuridele amd64 ja i386 on lisatud komponente AMD protsessorite mikrokoodi v\u00e4rskendamiseks. Uued mikrokoodi versioonid installitakse automaatselt k\u00e4ivitusprotsessi k\u00e4igus. Mikrokoodi binaarfailide levitamiseks on ette valmistatud port &#171;ports\/sysutils\/firmware\/amd&#187;. Uue mikrokoodi installimine toimub hallatava utiliidi fw_update abil. Sarnane mikrokoodi v\u00e4rskendamise tugi Intel protsessoritele rakendati 2018. aastal ja see pakkus OpenBSD 6.3 v\u00e4ljaandes.\n<li class=\"l\"> Tuuma ja kasutaja ruumi jaoks on sisse l\u00fclitatud kaitsemehhanismid IBT (Indirect Branch Tracking, amd64) ja BTI (Branch Target Identification, arm64), mis on m\u00f5eldud tavalise teostusj\u00e4rjestuse rikkumise (control flow) takistamiseks, kui kuritarvitatakse m\u00e4lu funktsioonide osutajaid (rakendatud kaitse ei luba kahjuliku koodi funktsiooni keskossa p\u00f6\u00f6rduda).\n<li class=\"l\"> Arm64 arhitektuuriga s\u00fcsteemides on kasutaja ruumi kaitseks sisse l\u00fclitatud n\u00e4itajate autentimine (Pointer Authentication). Tehnoloogia v\u00f5imaldab kasutada spetsialiseeritud ARM64 k\u00e4ske tagasip\u00f6\u00f6rde aadresside kontrollimiseks, kasutades digitaalallkirju, mis salvestatakse ise n\u00e4itaja mittet\u00e4idetud \u00fclemisse bitti.\n<li class=\"l\"> S\u00fcsteemi kompilaatori clang seadistused ja samuti clang ja gcc portidest on muudetud eespool nimetatud kaitsemehhanismide rakendamiseks, mis on oluliselt suurendanud k\u00f5igi p\u00f5hij\u00f5udlusrakenduste ja enamikku portidest p\u00e4rit rakenduste kaitset ROP (Return-Oriented Programming) kuritarvituste vastu. ROP tehnikat kasutades ei \u00fcrita r\u00fcndaja oma koodi m\u00e4lu paigutada, vaid manipuleerib juba laaditud raamatukogudes olevate masinakirjutusplokkide (otsustavad tavaliselt raamatukogufunktsioonide l\u00f5ppotsused) abil. Eksploiteerimise t\u00f6\u00f6 ulatub sarnaste plokkide (\u201enukud\u201d) helistamisalade ehitamiseni vajaliku funktsionaalsuse saavutamiseks.\n<li class=\"l\"> Lisatud on uus s\u00fcsteemi kutsumine kqueue1, mis erineb kqueue'st lipu edastamise poolest. Praegu toetab kqueue1 ainult lippu O_CLOEXEC (close-on-exec), et automaatselt sulgeda failide deskriptorid lapsprotsessis p\u00e4rast exec() kutsumist.\n<li class=\"l\"> Amd64 ja i386 arhitektuuridele on rakendatud toetust pseudoseadmestikule dt, et korraldada s\u00fcsteemi ja rakenduste d\u00fcnaamilist j\u00e4lgimist. Kasutajate logi ktrace lisamiseks on lisatud s\u00fcsteemi kutsumine utrace.\n<li class=\"l\"> FreeBSD-st on kantud parandusi, mis k\u00f5rvaldavad m\u00e4\u00e4ramatud k\u00e4itumised MS-DOS failis\u00fcsteemide kasutamisel.\n<li class=\"l\"> Keelatud on muktamise valik softdep, mis on rakendatud metadata edasil\u00fckatud grupi kirjutamiseks.\n<li class=\"l\"> Rakendustele, mida kaitseb s\u00fcsteemi kutse unveil, on lubatud s\u00e4ilitada core-dumpe praeguses t\u00f6\u00f6kataloogis.\n<li class=\"l\"> ARM64 arhitektuurile on rakendatud v\u00f5imalus liikuda s\u00fcgavale mitteaktiivsetesse (idle) olekutesse, mis on kergesti k\u00e4tte saadavad Apple M1\/M2 kiipides, et energia kokku hoida ja ooteolekut teostada.\n<li class=\"l\"> Lisatud on kaitsemehhanism amd protsessorite Zenbleed haavatavuse vastu.\n<li class=\"l\"> Parandatud on mitme protsessori s\u00fcsteemide (SMP) toetust. \u00dcksused arprequest(), sissetulevate ARP-pakettide t\u00f6\u00f6tlemise kood ja naabrite m\u00e4\u00e4ramise rakendamine IPv6 virnas on vabastatud lukustustest.\n<li class=\"l\"> Pakettide filtreerimise pfsync tabeli s\u00fcnkroniseerimise liidest on \u00fcmber kirjutatud, et parandada lukustusj\u00e4rje ja \u00fchitamise t\u00f6\u00f6d tuleviku v\u00f5rgu virna t\u00f6\u00f6de jagamisega.\n<li class=\"l\"> DRM (Direct Rendering Manager) raamistik on s\u00fcnkroniseeritud Linuxi tuumaga 6.1.55 (eelmine versioon \u2014 6.1.15). Intel protsessoritega, mis p\u00f5hinevad mikroarhitektuuridel Alder Lake ja Raptor Lake, on t\u00f6\u00f6 parandatud.\n<li class=\"l\"> H\u00fcperviisorit VMM on t\u00e4iustatud. VMD-s on rakendatud mitme protsessori mudeli toetust plokk- ja v\u00f5rgustikuvaba virtio-seadmete jaoks. Plokk-virtio-seadmestikus on lisatud zero-copy re\u017eiimis vektorite sisse\/funktsionaalsuse tugi. Piiratud on k\u00fclalisj\u00e4rgsete s\u00fcsteemide juurdep\u00e4\u00e4s AMD protsessorite p-state re\u017eiimidele. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/vps\/\"   title=\"virtuaalmasinad\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2146\">virtuaalmasinad<\/a> vmctl kaudu on lubatud laaditavat tuuma \u00fcmber kirjutada.\n<li class=\"l\"> Uus pealkirja fail uchar.h on lisatud t\u00fc\u00fcpidest char32_t ja char16_t, samuti funktsioonidega c32rtomb(), mbrtoc32(), c16rtomb() ja mbrtoc16(), mis on m\u00e4\u00e4ratletud C11 standardis.\n<li class=\"l\"> Malloc funktsioonile on lisatud valik 'D', et tuvastada m\u00e4lu leke ktrace abil ('MALLOC_OPTIONS=D ktrace -tu program') ja kdump ('kdump -u malloc ...').\n<li class=\"l\"> Make utiliidile on lisatud ${.VARIABLES} muutuja tugi, et kuvada k\u00f5igi m\u00e4\u00e4ratud globaalsete muutujate nimed.\n<li class=\"l\"> Kdump utiliidile on lisatud valik '-u', et valida utrace j\u00e4lgimispunktid m\u00e4\u00e4ratud sildi j\u00e4rgi.\n<li class=\"l\"> Openrsync utiliidile on lisatud valikud '--size-only' ja '--ignore-times'.\n<li class=\"l\"> Cron ja crontab utiliitides on lisatud toetust juhuslike nihkete jaoks, kui m\u00e4\u00e4ratakse v\u00e4\u00e4rtuste vahemikud kindla sammuga, et v\u00e4ltida sama ressursi samaaegset taotlemist erinevatelt masinatelt, millel on samad reeglid cronis. N\u00e4iteks '0~59\/30' v\u00f5i '~30' minutite v\u00e4ljal k\u00e4ivitab k\u00e4sk kaks korda tunnis j\u00e4rjestikku valitud juhuslikes ajavahemiketes.\n<li class=\"l\"> Wsconsctl utiliidile on lisatud v\u00f5imalus klahvide kaardistamiseks kahe v\u00f5i kolme s\u00f5rme vajutustele puuteplaadil.\n<li class=\"l\"> Uue riistvara tugi ja uute draiverite lisamine.\n<li class=\"l\"> Parandatud installatsioonide toetust armv7 ja arm64 protsessoritega s\u00fcsteemidesse.\n<li class=\"l\"> Lisatud tugi failide laadimiseks EFI s\u00fcsteemipartitsioonilt.\n<li class=\"l\"> Installeerimisse on lisatud parem tugi tarkvaralistes RAID s\u00fcsteemides (softraid). Lisatud on v\u00f5imalus paigutada juurpartitsioon softraid s\u00fcsteemides riscv64 ja arm64. Softraid on lisatud ramdisk'i powerpc64 arhitektuurile. Arm64 jaoks on rakendatud ketaste kr\u00fcpteerimise toetus (Guided Disk Encryption).\n<li class=\"l\"> Malloc funktsioonile on lisatud kontroll k\u00f5igi eraldatud m\u00e4lu plokkide loendis, et tuvastada olukordi, kus kirjutatakse vabastatud m\u00e4lu aladele.\n<li class=\"l\"> Shutdown k\u00e4su t\u00e4itmiseks on n\u00fc\u00fcd vajalik kasutaja lisamine gruppi '_shutdown', mis v\u00f5imaldab jagada \u00f5igusi, mis on seotud s\u00fcsteemi v\u00e4ljal\u00fclitamise ja otseketastest lugemisega.\n<li class=\"l\"> Patch utiliit on piiratud juurdep\u00e4\u00e4suga ainult praegusele kataloogile, ajutiste failide kataloogile ja k\u00e4sklusridakese failidele s\u00fcsteemik\u00f5nes.\n<li class=\"l\"> Lisatud sysctl net.inet6.icmp6.nd6_queued, et n\u00e4idata ND6 vastust ootavate paketide arvu (sarnaselt ARP-iga).\n<li class=\"l\"> IPv6 aadressi seadistamisel v\u00f5rgu liideses on tagatud naaberruuteritele kuulutamine multikaadressile.\n<li class=\"l\"> Lisatud algtugi TSO (TCP segmenteerimise v\u00e4ljalaskmine) ja LRO (TCP suure vastuv\u00f5tu v\u00e4ljalaskmine) segmentide t\u00f6\u00f6tlemiseks ja paketide \u00fchendamiseks v\u00f5rkaartide k\u00fcljest.\n<li class=\"l\"> PF filtreerimisreeglite tuumast laadimist on kiirendatud pfctl utiliidi abil. On sisse l\u00fclitatud tegevuste 'keep state' ja 'nat-to' t\u00f6\u00f6tlemine ICMP veateadete kaudu.\n<li class=\"l\"> IP, TCP ja UDP kontrollsummade arvutamine on v\u00e4lja l\u00fclitatud loopback liidese jaoks.\n<li class=\"l\"> Algne tugi on lisatud <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/vpn\/\"   title=\"VPN\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"243\">VPN<\/a> IPsec, mis s\u00f5ltub marsruutimisest (route-based).\n<li class=\"l\"> Bgpd-le on lisatud Flowspec (RFC5575) tugi (praegu toetatakse ainult flowspeci reeglite kuulutamist). ASPA (Autonomous System Provider Authorization) t\u00f5lgendamine on viidud koosk\u00f5lla spetsifikatsioonidega draft-ietf-sidrops-aspa-verification-16 ja draft-ietf-sidrops-aspa-profile-16 ning see on muudetud otsingutabelite kasutamiseks, mis ei s\u00f5ltu AFI-st (Address Family Indicator).\n<li class=\"l\"> rpki-clienti j\u00f5udlust on suurendatud 30-50%. Lisatud on gzip ja deflate tihendamise tugi.\n<li class=\"l\"> LibreSSL ja OpenSSH paketid on uuendatud. \u00dcksikasjalikku teavet t\u00e4iustuste kohta leiate LibreSSL 3.8.0, OpenSSH 9.4 ja OpenSSH 9.5 \u00fclevaadates.\n<li class=\"l\"> AMD64 arhitektuuri portide arv on 11845 (oli 11764), aarch64 - 11508 (oli 11561), i386 - 10603 (oli 10572). Portides rakenduste versioonide seas:\n<ul>\n<li>Asterisk 16.30.1, 18.19.0b, 20.4.0      <\/li>\n<li>Audacity 3.3.3      <\/li>\n<li>CMake 3.27.5      <\/li>\n<li>Chromium 117.0.5938.149      <\/li>\n<li>Emacs 29.1      <\/li>\n<li>FFmpeg 4.4.4      <\/li>\n<li>GCC 8.4.0 ja 11.2.0      <\/li>\n<li>GHC 9.2.7      <\/li>\n<li>GNOME 44      <\/li>\n<li>Go 1.21.1      <\/li>\n<li>JDK 8u382, 11.0.20 ja 17.0.8      <\/li>\n<li>KDE rakendused 23.08.0      <\/li>\n<li>KDE raamistikud 5.110.0      <\/li>\n<li>Krita 5.1.5      <\/li>\n<li>LLVM\/Clang 13.0.0 ja 16.0.6      <\/li>\n<li>LibreOffice 7.6.2.1      <\/li>\n<li>Lua 5.1.5, 5.2.4, 5.3.6 ja 5.4.6      <\/li>\n<li>MariaDB 10.9.6      <\/li>\n<li>Mono 6.12.0.199      <\/li>\n<li>Mozilla Firefox 118.0.1 ja ESR 115.3.1      <\/li>\n<li>Mozilla Thunderbird 115.3.1      <\/li>\n<li>Mutt 2.2.12 ja NeoMutt 20230517      <\/li>\n<li>Node.js 18.18.0      <\/li>\n<li>OpenLDAP 2.6.6      <\/li>\n<li>PHP 7.4.33, 8.0.30, 8.1.24 ja 8.2.11      <\/li>\n<li>Postfix 3.7.3      <\/li>\n<li>PostgreSQL 15.4      <\/li>\n<li>Python 2.7.18, 3.9.18, 3.10.13 ja 3.11.5      <\/li>\n<li>Qt 5.15.10 ja 6.5.2      <\/li>\n<li>R 4.2.3      <\/li>\n<li>Ruby 3.0.6, 3.1.4 ja 3.2.2      <\/li>\n<li>Rust 1.72.1      <\/li>\n<li>SQLite 3.42.0      <\/li>\n<li>Shotcut 23.07.29      <\/li>\n<li>Sudo 1.9.14.2      <\/li>\n<li>Suricata 6.0.12      <\/li>\n<li>Tcl\/Tk 8.5.19 ja 8.6.13      <\/li>\n<li>TeX Live 2022      <\/li>\n<li>Vim 9.0.1897 ja Neovim 0.9.1      <\/li>\n<li>Xfce 4.18    <\/li>\n<\/ul>\n<li class=\"l\"> V\u00e4rskendatud komponentide hulka, mis kuuluvad OpenBSD 7.3-sse:\n<ul>\n<li class=\"l\"> Xenocara graafikusteem X.Org 7.7 p\u00f5hjal, xserver 21.1.8 + plaastrid, freetype 2.13.0, fontconfig 2.14.2, Mesa 22.3.7, xterm 378, xkeyboard-config 2.20, fonttosfnt 1.2.2.  <\/li>\n<li class=\"l\">    LLVM\/Clang 13.0.0 (+ pat\u0161id)  <\/li>\n<li class=\"l\">    GCC 4.2.1 (+ pat\u0161id) ja 3.3.6 (+ pat\u0161id)  <\/li>\n<li class=\"l\">    Perl 5.36.1 (+ plaastritega)  <\/li>\n<li class=\"l\">    NSD 4.7.0  <\/li>\n<li class=\"l\">    Unbound 1.18  <\/li>\n<li class=\"l\">    Ncurses 5.7  <\/li>\n<li class=\"l\">    Binutils 2.17 (+ plaastritega)  <\/li>\n<li class=\"l\">  Gdb 6.3 (+ \u043f\u0430\u0442\u0447 )  <\/li>\n<li class=\"l\">  Awk 12.9.2023  <\/li>\n<li class=\"l\">  Expat 2.5.0.  <\/li>\n<\/ul>\n<\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59942\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 UNIX-\u043f\u043e\u0434\u043e\u0431\u043d\u043e\u0439 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b OpenBSD 7.4. \u041f\u0440\u043e\u0435\u043a\u0442 OpenBSD \u0431\u044b\u043b \u043e\u0441\u043d\u043e\u0432\u0430\u043d \u0422\u044d\u043e \u0434\u0435 \u0420\u0430\u0430\u0434\u0442\u043e\u043c (Theo de Raadt) \u0432 1995 \u0433\u043e\u0434\u0443 \u043f\u043e\u0441\u043b\u0435 \u043a\u043e\u043d\u0444\u043b\u0438\u043a\u0442\u0430 \u0441 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 NetBSD, \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0434\u043b\u044f \u0422\u044d\u043e \u0431\u044b\u043b \u0437\u0430\u043a\u0440\u044b\u0442 \u0434\u043e\u0441\u0442\u0443\u043f \u043a CVS \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044e NetBSD. \u041f\u043e\u0441\u043b\u0435 \u044d\u0442\u043e\u0433\u043e \u0422\u044d\u043e \u0434\u0435 \u0420\u0430\u0430\u0434\u0442 \u0441 \u0433\u0440\u0443\u043f\u043f\u043e\u0439 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