{"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\/news\/vypusk-openbsd-7-4","title":{"rendered":"OpenBSD 7.4 v\u00e4ljaanne","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Avalikustatud on OpenBSD 7.4, vabavaraline UNIX-sarnane operatsioonis\u00fcsteem. OpenBSD projekt asutati Theo de Raadt'i poolt 1995. aastal p\u00e4rast konflikti NetBSD arendajatega, mille t\u00f5ttu suleti Theo juurdep\u00e4\u00e4s NetBSD CVS-repositooriumile. P\u00e4rast seda l\u00f5i Theo de Raadt koos m\u00f5ttekaaslastega uue avatud operatsioonis\u00fcsteemi, kasutades NetBSD l\u00e4htekoodipuud, mille peamisteks arengueesm\u00e4rkideks said \u00fchilduvus (toetatakse 13 riistvaraplatvormi), standardiseerimine, korrektne t\u00f6\u00f6, proaktiivne turvalisus ja integreeritud kr\u00fcptograafilised vahendid. OpenBSD 7.4 p\u00f5hiversiooni t\u00e4isinstalli ISO-pildi suurus on 630 MB.       <\/p>\n<p>Lisaks operatsioonis\u00fcsteemile on projekt OpenBSD tuntud oma komponentide poolest, mis on levinud ka teistes s\u00fcsteemides ning on t\u00f5estanud end kui \u00fched turvalisimad ja kvaliteetseimad lahendused. Nende hulgas on: LibreSSL (OpenSSLi fork), OpenSSH, paketifilter PF, OpenBGPD ja OpenOSPFD marsruutimoodulid, OpenNTPD NTP-server, OpenSMTPD postiserver, tmux tekstiterminali mitmehargne, identd teenus protokolli IDENTi rakendusega, BSDL-alternatiiv GNU groff paketile &#8212; mandoc, protokoll usaldusv\u00e4\u00e4rsete s\u00fcsteemide korraldamiseks CARP (Common Address Redundancy Protocol), kergekaaluline http-server ning OpenRSYNC failide s\u00fcnkroonimise utiliit.          <\/p>\n<p>Peamised t\u00e4iustused:   <\/p>\n<ul>\n<li class=\"l\"> AMD protsessorite mikrokoodi uuendamiseks on lisatud komponendid arhitektuuridele amd64 ja i386. Uued mikrokoodi versioonid paigaldatakse automaatselt s\u00fcsteemi k\u00e4ivitamisel. Mikrokoodi binaarfailide levitamiseks on ette n\u00e4htud port &#171;ports\/sysutils\/firmware\/amd&#187;. Uue mikrokoodi installimine toimub utiliidi fw_update abil. Sarnane Intel protsessorite mikrokoodi uuendamise tugi viidi ellu 2018. aastal ning see pakuti v\u00e4lja OpenBSD 6.3 v\u00e4ljaandes.\n<li class=\"l\"> Kernelis ja kasutaja ruumis on aktiveeritud kaitsemehhanismid IBT (Indirect Branch Tracking, amd64) ja BTI (Branch Target Identification, arm64), mis on m\u00f5eldud juhtimisvoo rikkumiste (control flow) blokeerimiseks, mis tulenevad eksploitide kasutamisest, mis muudavad m\u00e4lu salvestatud funktsioonide n\u00e4itajaid (rakendatud kaitse ei luba pahatahtlikel koodidel teostada \u00fcleminekut funktsiooni keskpunkti).\n<li class=\"l\"> Arm64 arhitektuuriga s\u00fcsteemidel on kasutaja ruumi kaitseks aktiveeritud n\u00e4itajate autentimine (Pointer Authentication). Tehnoloogia v\u00f5imaldab kasutada spetsialiseeritud ARM64 k\u00e4sklusi tagasip\u00f6\u00f6rdumisaadresside kontrollimiseks digitaalsete allkirjade abil, mis on salvestatud ise n\u00e4itaja \u00fclemiste mittekasutatavate bittide sisse.\n<li class=\"l\"> S\u00fcsteemi kompilaatori clang seadeid ning samuti clang ja gcc portidest on muudetud, et rakendada eespool nimetatud kaitsemehhanisme, mis on m\u00e4rkimisv\u00e4\u00e4rselt suurendanud k\u00f5ikide p\u00f5hitegevuste ja enamikus portidest olevate rakenduste kaitset, kui kasutatakse tagasip\u00f6\u00f6rdumise suunatud programmeerimise (ROP - Return-Oriented Programming) meetodeid. ROP tehnikat kasutades ei \u00fcrita r\u00fcndaja oma koodi m\u00e4lu paigutada, vaid kasutab juba laaditud raamatukogudes olevaid masiinijuhiseid, mis l\u00f5ppevad juhtimise tagastamise k\u00e4suga (\u00fcldiselt on need raamatukogu funktsioonide l\u00f5ppud). Eksploidi t\u00f6\u00f6 seisneb selliste plokkide (&#171;gadgetide&#187;) helistusahelate loomises n\u00f5utava funktsionaalsuse saavutamiseks.\n<li class=\"l\"> Uus s\u00fcsteemik\u00f5ne kqueue1 on lisatud, mis erineb kqueue'st lipu edastamise poolest. Praegu toetab kqueue1 ainult lippu O_CLOEXEC (close-on-exec) failidesse, mis automaatselt sulgevad failihaldurid t\u00fctre protsessis p\u00e4rast exec() v\u00e4ljakutset.\n<li class=\"l\"> Arhitektuuridele amd64 ja i386 on toetatud pseudoseadet dt s\u00fcsteemi ja rakenduste d\u00fcnaamiliseks j\u00e4lgimiseks. Kasutaja logikirjete lisamiseks ktrace'i on lisatud s\u00fcsteemik\u00f5ne utrace.\n<li class=\"l\"> FreeBSD-st on \u00fclev\u00f5etud parandused, mis k\u00f5rvaldavad m\u00e4\u00e4ramatut k\u00e4itumist MS-DOS failis\u00fcsteemide kasutamisel.\n<li class=\"l\"> Softdep montaa\u017ei valik on deaktiveeritud, mida kasutatakse metainformatsiooni hilinenud grupitud salvestamiseks.\n<li class=\"l\"> Rakendustele, mis on kaitstud s\u00fcsteemik\u00f5ne unveil abil, lubatakse salvestada core dump'e praegusesse t\u00f6\u00f6kausta.\n<li class=\"l\"> ARM64 arhitektuuri jaoks on rakendatud s\u00fcgavale mitteaktiivsusse (idle) liikumise v\u00f5imalust, mis on saadaval Apple M1\/M2 kiipides, et s\u00e4\u00e4sta energiat ja rakendada ootere\u017eiimi.\n<li class=\"l\"> Lisatud on Zenbleedi haavatavuse eest kaitse AMD protsessorites.\n<li class=\"l\"> T\u00e4psemalt on parendatud mitme protsessoriga s\u00fcsteemide (SMP) toetust. Lockidest on vabastatud funktsioon arprequest(), sissetulevate ARP-pakettide t\u00f6\u00f6tlemise kood ja naaber\u00f5nneliste m\u00e4\u00e4ramise teostamine IPv6 protokollis.\n<li class=\"l\"> Pakettide filtreerimise pfsync tabelite s\u00fcnkroniseerimise liides on \u00fcmber kirjutatud, et parandada blokeeringute t\u00f6\u00f6tlemist ja koosk\u00f5la tulevaste t\u00f6\u00f6stustega v\u00f5rgu staki paralelleerimise osas.\n<li class=\"l\"> DRM (Direct Rendering Manager) raamistik on s\u00fcnkroonitud Linuxi tuumaga 6.1.55 (ega eelmine v\u00e4ljaanne - 6.1.15). Intel protsessorite t\u00f6\u00f6parendustel, mis p\u00f5hinevad mikroarhitektuuridel Alder Lake ja Raptor Lake, on parandatud toimimist.\n<li class=\"l\"> VMM h\u00fcpervisev\u00f5tmes on tehtud t\u00e4iustusi. VMD-s on rakendatud toimetuse toetust mitme protsessori mudelile plokk- ja v\u00f5rgus virtio seadmetele. Plokk-virtio seadmesse on lisatud vektorkirjutuse\/loetuse tugi zero-copy re\u017eiimis. AMD protsessorite p-state re\u017eiimide juurde p\u00e4\u00e4semine on piiratud k\u00fclaliss\u00fcsteemide jaoks. Omanikele <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/vps\/\"   title=\"virtuaalmasinate\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2146\">virtuaalmasinate<\/a> on lubatud vmctl kaudu laaditavat tuuma \u00fcle kirjutada.\n<li class=\"l\"> Uus pealkirjade fail uchar.h on lisatud, mis sisaldab t\u00fc\u00fcpe char32_t ja char16_t, ning funktsioone c32rtomb(), mbrtoc32(), c16rtomb() ja mbrtoc16(), mis on m\u00e4\u00e4ratletud C11 standardis.\n<li class=\"l\"> Funktsioonile malloc on lisatud 'D' valik, et tuvastada m\u00e4lu leket ktrace'i (&#171;MALLOC_OPTIONS=D ktrace -tu program&#187;) ja kdumpi (&#171;kdump -u malloc &#8230;&#187;) abil.\n<li class=\"l\"> Make utiliidile on lisatud tugi muutuja ${.VARIABLES} jaoks, et kuvada k\u00f5igi m\u00e4\u00e4ratud globaalsete muutujate nimesid.\n<li class=\"l\"> Kdump utiliidile on lisatud valik &#171;-u&#187; utrace'i j\u00e4lgimispunktide valimiseks antud sildi j\u00e4rgi.\n<li class=\"l\"> Openrsync utiliidile on lisatud valikud &#171;&#8212;size-only&#187; ja &#171;&#8212;ignore-times&#187;.\n<li class=\"l\"> Cronis ja crontabis on lisatud tugi juhuslike nihke jaoks, kui m\u00e4\u00e4ratakse v\u00e4\u00e4rtuste vahemikega antud samm, mis aitab v\u00e4ltida erinevatelt masinatelt samaaegset ressursikutsumist, kui neil on cronis samad reeglid. N\u00e4iteks &#171;0~59\/30&#187; v\u00f5i &#171;~\/30&#187; minutite v\u00e4ljal toob kaasa k\u00e4su k\u00e4ivitamise kaks korda tunnis j\u00e4rjestikuste juhuslikult valitud intervallide kaudu.\n<li class=\"l\"> Wsconsctl utiliidile on lisatud v\u00f5imalus nuppude kaardistamiseks kahe v\u00f5i kolme s\u00f5rmega klikkimise jaoks puuteplaadil.\n<li class=\"l\"> Uue riistvara tugi on lisatud ja uued draiverid on ametlikult lisatud.\n<li class=\"l\"> Installer toetab n\u00fc\u00fcd paremat installimist armv7 ja arm64 protsessoritega s\u00fcsteemides.\n<li class=\"l\"> Toetust failide laadimiseks EFI s\u00fcsteemiosast (EFI System Partition) on lisatud.\n<li class=\"l\"> Installeerijas on parandatud tarkvara RAID (softraid) toetust. Lisatud on v\u00f5imalus juurepartitsioon paigutada softraidi riscv64 ja arm64 s\u00fcsteemides. Softraid on lisatud ramdiski powerpc64 arhitektuuri jaoks. Arm64 puhul on rakendatud ketaste kr\u00fcpteerimise tugi (Guided Disk Encryption).\n<li class=\"l\"> Malloc funktsioonile on lisatud kontroll kogu viivitusega vabastamise m\u00e4lupesa loendis, et tuvastada olukordi, kus kirjutatakse vabastatud m\u00e4luruumi.\n<li class=\"l\"> K\u00e4sk shutdown n\u00f5uab n\u00fc\u00fcd kasutaja lisamist gruppi &#171;_shutdown&#187;, mis v\u00f5imaldab eraldada \u00f5igusi, mis on seotud v\u00e4ljal\u00fclitamise ja otse lugemisega diskiseadmetest.\n<li class=\"l\"> S\u00fcsteemik\u00f5ne unveil abil on t\u00f6\u00f6riist patch piiratud juurdep\u00e4\u00e4suga ainult praegusele kataloogile, ajutiste failide kataloogile ja k\u00e4sureal loetletud failidele.\n<li class=\"l\"> Lisatud sysctl net.inet6.icmp6.nd6_queued, et n\u00e4idata ND6 vastust ootavate pakettide arvu (sarnaselt ARP-iga).\n<li class=\"l\"> IPv6 aadressi seadistamise korral v\u00f5rguinterf\u00e4\u00e4sile on tagatud naaberruuteritele multicasti aadressi kaudu kuulutuse saatmine.\n<li class=\"l\"> Lisatud algtoetuseks TSO (TCP Segmentation Offload) ja LRO (TCP Large Receive Offload) segmenteerimise ja pakettide \u00fchendamise jaoks v\u00f5rguadapteri poolel.\n<li class=\"l\"> Pakettide filtreerimise reeglite tuuma laadimist kiirendati t\u00f6\u00f6riistaga pfctl. Lisatud on toimingute &#171;keep state&#187; ja &#171;nat-to&#187; t\u00f6\u00f6tlemine ICMP veateadetega, mis saadetakse tagasi.\n<li class=\"l\"> IP, TCP ja UDP kontrollsummade arvutamine on keelatud loopback-interf\u00e4\u00e4side jaoks.\n<li class=\"l\"> Algtoetuse lisamine <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-s on lisatud tugi Flowspec (RFC5575, hetkel toetab see ainult flowspec reeglite kuulutamist). ASPA (Autonomous System Provider Authorization) rakendamine on viidud vastavusse spetsifikatsioonidega draft-ietf-sidrops-aspa-verification-16 ja draft-ietf-sidrops-aspa-profile-16 ning muudetud AFI (Address Family Indicator) s\u00f5ltumatuks otsingulaudade kasutamiseks.\n<li class=\"l\"> Rpki-clienti j\u00f5udlust on suurendatud 30-50%. Lisatud on gzip ja deflate tihenduse tugi.\n<li class=\"l\"> LibreSSL ja OpenSSH paketid on v\u00e4rskendatud. \u00dcksikasjaliku \u00fclevaate parendustest leiate LibreSSL 3.8.0, OpenSSH 9.4 ja OpenSSH 9.5 \u00fclevaadetest.\n<li class=\"l\"> AMD64 arhitektuuri kohta on sadamate arv 11845 (oli 11764), aarch64 jaoks on see 11508 (oli 11561), i386 jaoks 10603 (oli 10572). Rakenduste versioonide seas sadamates:\n<ul>\n<li>Asterisk 16.30.1, 18.19.0, 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>Firefox 123.0.1, ESR 115.8.0      <\/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 raamistiku 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>Ruby 3.1.4, 3.2.3, 3.3.0      <\/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>Suricata 7.0.3      <\/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\"> \u00dclevaatavad komponendid kolmandate osapoolte arendajatelt, mis on OpenBSD 7.3-sse integreeritud:\n<ul>\n<li class=\"l\"> Xenocara graafikastek X.Org 7.7, xserver 21.1.8 + patchid, 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 (+ plaastrid)  <\/li>\n<li class=\"l\">    GCC 4.2.1 (+ plaastrid) ja 3.3.6 (+ plaastrid)  <\/li>\n<li class=\"l\">    Perl 5.36.1 (+ plaasikud)  <\/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 (+ patchid)  <\/li>\n<li class=\"l\">  Gdb 6.3 (+ plaastrid)  <\/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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