{"id":407,"title":"Windows Server 24H2 G\u00fcvenlik Alarm\u0131 ? KB5066835 Yamas\u0131","content":"<div id=\"model-response-message-contentr_23aa18ca0c31b55d\" class=\"markdown markdown-main-panel enable-luminous-fast-follows enable-updated-hr-color stronger\" dir=\"ltr\" aria-busy=\"false\" aria-live=\"polite\">\n<p data-path-to-node=\"3\">Siber g&uuml;venlik d&uuml;nyas\u0131nda zafiyetlerin \"ya\u015f\u0131\" her zaman riskin bitti\u011fi anlam\u0131na gelmez. Bunun en g&uuml;ncel &ouml;rne\u011fini, Microsoft&rsquo;un modern i\u015fletim sistemleri i&ccedil;in yay\u0131nlad\u0131\u011f\u0131 son toplu g&uuml;ncelle\u015ftirmelerde a&ccedil;\u0131k&ccedil;a g&ouml;r&uuml;yoruz. K&ouml;keni 2016 y\u0131l\u0131na dayanan bir a&ccedil;\u0131k kaynak k&uuml;t&uuml;phanesi zafiyeti, bug&uuml;n en g&uuml;ncel&nbsp;<strong data-path-to-node=\"3\" data-index-in-node=\"299\">Windows Server 24H2<\/strong> sistemlerimizi do\u011frudan etkileyebiliyor.<\/p>\n<p data-path-to-node=\"4\">Bu yaz\u0131m\u0131zda, sistem y&ouml;neticilerinin radar\u0131nda olmas\u0131 gereken <strong data-path-to-node=\"4\" data-index-in-node=\"62\">CVE-2016-9535<\/strong> zafiyetini ve &ccedil;&ouml;z&uuml;m ad\u0131mlar\u0131n\u0131 ele al\u0131yoruz.<\/p>\n<h3 data-path-to-node=\"6\">Tehlike Nedir? (CVE-2016-9535 ve LibTIFF)<\/h3>\n<p data-path-to-node=\"7\">Zafiyetin merkezinde, g&ouml;rsel i\u015fleme s&uuml;re&ccedil;lerinde yayg\u0131n olarak kullan\u0131lan a&ccedil;\u0131k kaynakl\u0131 bir k&uuml;t&uuml;phane olan <strong data-path-to-node=\"7\" data-index-in-node=\"107\">LibTIFF<\/strong> yer al\u0131yor. Bu k&uuml;t&uuml;phanenin eski s&uuml;r&uuml;mlerinde (<code data-path-to-node=\"7\" data-index-in-node=\"162\">tif_predict.c<\/code> kaynakl\u0131), k&ouml;t&uuml; ama&ccedil;l\u0131 yap\u0131land\u0131r\u0131lm\u0131\u015f bir TIFF g&ouml;rseli i\u015flenirken bellek boyutu yanl\u0131\u015f hesaplan\u0131yor.<\/p>\n<p data-path-to-node=\"8\">Sonu&ccedil;? <strong data-path-to-node=\"8\" data-index-in-node=\"7\">Kritik (CVSS: 9.8) seviyede bir Y\u0131\u011f\u0131n Tabanl\u0131 Arabellek Ta\u015fmas\u0131 (Heap-based Buffer Overflow).<\/strong><\/p>\n<p data-path-to-node=\"9\">Sald\u0131rganlar, bu a&ccedil;\u0131\u011f\u0131 manip&uuml;le ederek sistem &uuml;zerinde <strong data-path-to-node=\"9\" data-index-in-node=\"55\">Uzaktan Kod &Ccedil;al\u0131\u015ft\u0131rma (RCE)<\/strong> ger&ccedil;ekle\u015ftirebilir veya sistem servislerini tamamen &ccedil;&ouml;kerterek hizmet d\u0131\u015f\u0131 (DoS) b\u0131rakabilir.<\/p>\n<h3 data-path-to-node=\"10\">En G&uuml;ncel Sistemler Neden Etkileniyor?<\/h3>\n<p data-path-to-node=\"11\">Peki, 2016'n\u0131n a&ccedil;\u0131\u011f\u0131 neden 24H2 mimarisinde kar\u015f\u0131m\u0131za &ccedil;\u0131k\u0131yor?<\/p>\n<p data-path-to-node=\"12\">Bunun nedeni <strong data-path-to-node=\"12\" data-index-in-node=\"13\">yaz\u0131l\u0131m tedarik zinciri (Supply Chain)<\/strong> ba\u011f\u0131ml\u0131l\u0131klar\u0131d\u0131r. \u0130\u015fletim sistemlerinin alt katmanlar\u0131nda yer alan faks, yazd\u0131rma alt yap\u0131lar\u0131 veya dahili imaj g&ouml;r&uuml;nt&uuml;leme bile\u015fenleri, arka planda h&acirc;l&acirc; bu k&ouml;kl&uuml; k&uuml;t&uuml;phanelerin kod par&ccedil;ac\u0131klar\u0131n\u0131 bar\u0131nd\u0131rabiliyor. Microsoft, modern i\u015fletim sistemlerini tamamen g&uuml;venli hale getirmek ad\u0131na bu eski kal\u0131nt\u0131lar\u0131 da geriye d&ouml;n&uuml;k olarak temizlemektedir.<\/p>\n<h3 data-path-to-node=\"14\">&Ccedil;&ouml;z&uuml;m: KB5066835 G&uuml;ncelle\u015ftirmesi<\/h3>\n<p data-path-to-node=\"15\">Microsoft, x64 tabanl\u0131 Windows Server 24H2 ve Windows 11 sistemler i&ccedil;in bu a&ccedil;\u0131\u011f\u0131 kapatan <strong data-path-to-node=\"15\" data-index-in-node=\"89\">KB5066835<\/strong> toplu g&uuml;ncelle\u015ftirme paketini devreye ald\u0131.<\/p>\n<p data-path-to-node=\"16\">Bu yama, alt bile\u015fenlerdeki bellek tahsis aritmeti\u011fini ve s\u0131n\u0131r kontrollerini d&uuml;zelterek g&uuml;venlik a&ccedil;\u0131\u011f\u0131n\u0131 tamamen ortadan kald\u0131r\u0131yor. G&uuml;ncelleme ba\u015far\u0131yla uyguland\u0131\u011f\u0131nda, i\u015fletim sistemi derleme numaran\u0131z <strong data-path-to-node=\"16\" data-index-in-node=\"205\">26100.6899<\/strong> (veya &uuml;zeri) seviyesine y&uuml;kselmektedir.<\/p>\n<h3 data-path-to-node=\"18\">Sistem Y&ouml;neticileri \u0130&ccedil;in 3 Ad\u0131ml\u0131 Aksiyon Plan\u0131<\/h3>\n<p data-path-to-node=\"19\">E\u011fer altyap\u0131n\u0131zda Windows Server 24H2 veya Windows 11 24H2 &ccedil;al\u0131\u015ft\u0131ran sunucu ve istemciler varsa, a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 h\u0131zla uygulaman\u0131z\u0131 &ouml;neririz:<\/p>\n<ol start=\"1\" data-path-to-node=\"20\">\n<li>\n<p data-path-to-node=\"20,0,0\"><strong data-path-to-node=\"20,0,0\" data-index-in-node=\"0\">Envanter Kontrol&uuml;:<\/strong> WSUS, SCCM veya Microsoft Defender for Endpoint &uuml;zerinden sistemlerinizin derleme (build) numaralar\u0131n\u0131 filtreleyin.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"20,1,0\"><strong data-path-to-node=\"20,1,0\" data-index-in-node=\"0\">Yama Da\u011f\u0131t\u0131m\u0131:<\/strong> Test ortamlar\u0131nda do\u011frulamas\u0131 yap\u0131lan <strong data-path-to-node=\"20,1,0\" data-index-in-node=\"53\">KB5066835<\/strong> g&uuml;ncellemesini &uuml;retim (production) ortam\u0131ndaki sunucular\u0131n\u0131za planl\u0131 bir kesinti pencerelerinde da\u011f\u0131t\u0131n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"20,2,0\"><strong data-path-to-node=\"20,2,0\" data-index-in-node=\"0\">Do\u011frulama:<\/strong> G&uuml;ncelleme sonras\u0131nda sunucularda PowerShell &uuml;zerinden a\u015fa\u011f\u0131daki komutu &ccedil;al\u0131\u015ft\u0131rarak g&uuml;venli derleme s&uuml;r&uuml;m&uuml;ne ula\u015ft\u0131\u011f\u0131n\u0131z\u0131 teyit edin:<\/p>\n<!----><!----><!----><!----><!----><!----><!----><!---->\n<div class=\"code-block ng-tns-c2643669177-22 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\" data-hveid=\"0\" data-ved=\"0CAAQhtANahgKEwj1lp7dwMKVAxUAAAAAHQAAAAAQrwE\"><!---->\n<div class=\"formatted-code-block-internal-container ng-tns-c2643669177-22\">\n<div class=\"animated-opacity ng-tns-c2643669177-22\">\n<div class=\"code-block-decoration header-formatted gds-emphasized-body-m ng-tns-c2643669177-22 ng-star-inserted\"><span class=\"ng-tns-c2643669177-22\">PowerShell<\/span><!----><!----><button class=\"mdc-icon-button mat-mdc-icon-button mat-mdc-button-base mat-badge mat-unthemed _mat-animation-noopable mat-badge-overlap mat-badge-above mat-badge-after mat-badge-small mat-badge-hidden ng-star-inserted\" aria-label=\"Kodu indir\"><!----><!----><!----><!----><\/button><!----><!----><!----><!----><!----><!----><!----><!----><!----><button class=\"mdc-icon-button mat-mdc-icon-button mat-mdc-button-base mat-badge mat-unthemed _mat-animation-noopable mat-badge-overlap mat-badge-above mat-badge-after mat-badge-small mat-badge-hidden ng-star-inserted\" aria-label=\"Kodu kopyala\"><!----><!----><!----><!----><\/button><!----><!----><!----><!----><!----><!----><!----><!----><\/div>\n<div class=\"code-block-decoration header-formatted gds-emphasized-body-m ng-tns-c2643669177-22 ng-star-inserted\"><code class=\"code-container formatted ng-tns-c2643669177-22\" role=\"text\" data-test-id=\"code-content\">(<span class=\"hljs-built_in\">Get-ItemProperty<\/span> <span class=\"hljs-string\">\"HKLM:\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\"<\/span>).UBR\n<\/code><\/div>\n<!----><!----><\/div>\n<\/div>\n<\/div>\n<!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><!----><\/li>\n<\/ol>\n<p data-path-to-node=\"21\">Unutmay\u0131n; siber sald\u0131rganlar sistem s\u0131zmalar\u0131 i&ccedil;in her zaman en karma\u015f\u0131k s\u0131f\u0131r\u0131nc\u0131 g&uuml;n (Zero-Day) a&ccedil;\u0131klar\u0131n\u0131 aramazlar, &ccedil;o\u011fu zaman g&ouml;zden ka&ccedil;an eski ve yamalanmam\u0131\u015f k&uuml;t&uuml;phaneleri kullan\u0131rlar. Sistemlerinizi g&uuml;ncel tutun, altyap\u0131n\u0131z\u0131 g&uuml;vende b\u0131rak\u0131n!!!<\/p>\n<\/div>","excerpt":"Siber g\u00fcvenlik d\u00fcnyas\u0131nda zafiyetlerin \"ya\u015f\u0131\" her zaman riskin bitti\u011fi anlam\u0131na gelmez. Bunun en g\u00fcncel \u00f6rne\u011fini, Microsoft\u2019un modern i\u015fletim sistemleri i\u00e7in yay\u0131nlad\u0131\u011f\u0131 son toplu g\u00fcncelle\u015ftirmelerde a\u00e7\u0131k\u00e7a g\u00f6r\u00fcyoruz. K\u00f6keni 2016 y\u0131l\u0131na dayanan bir a\u00e7\u0131k kaynak k\u00fct\u00fcphanesi zafiyeti, bug\u00fcn en g\u00fcncel\u00a0Windows Server 24H2 sistemlerimizi do\u011frudan etkileyebiliyor.","created_at":"2026-07-08 10:11:25","updated_at":"2026-09-08 02:29:31","category_id":12,"view_count":253,"reading_time":4,"status":"published","editor_choice":0,"is_editor_choice":0,"published_at":"2026-07-08 07:11:25","featured_image":"\/uploads\/images\/2026\/07\/6a4df819b9d6e_1783494681.jpg","slug":"windows-server-24h2-guvenlik-alarmi-kb5066835-yamasi","category_name":"Misconfiguration","category_slug":"misconfiguration","category_color":"#84cc16"}