seva yamakalata kumasulidwa kwapadera ndi kuchotsedwa kwa wina (), zomwe zingakulolezeni kuti mugwiritse ntchito code yanu pa seva podutsa chingwe chopangidwa mwapadera mu lamulo la EHLO. Chiwopsezochi chikuwonekera pa siteji pambuyo poti mwayi wakhazikitsidwanso ndipo umangokhala pakugwiritsa ntchito ma code ndi ufulu wa wogwiritsa ntchito molakwika, pomwe woyendetsa uthenga wobwera amaphedwa.
Vutoli limangowoneka munthambi ya Exim 4.92 (4.92.0, 4.92.1 ndi 4.92.2) ndipo silimadutsana ndi kusatetezeka komwe kumakhazikitsidwa kumayambiriro kwa mwezi. . Kusatetezeka kumadza chifukwa cha kusefukira kwa buffer mu ntchito , yofotokozedwa mu fayilo string.c. Zowonetsera amakulolani kuti muwonongeke podutsa chingwe chachitali (ma kilobytes angapo) mu lamulo la EHLO, koma chiopsezocho chikhoza kugwiritsidwa ntchito kupyolera mu malamulo ena, komanso chingagwiritsidwe ntchito pokonzekera kuphedwa kwa code.
Palibe njira zogwirira ntchito zoletsa kusatetezeka, chifukwa chake ogwiritsa ntchito onse akulimbikitsidwa kukhazikitsa zosinthazo mwachangu, kugwiritsa ntchito. kapena onetsetsani kuti mukugwiritsa ntchito mapaketi operekedwa ndi magawo omwe ali ndi zosintha pazovuta zomwe zikuchitika. Hotfix yatulutsidwa (imangokhudza nthambi 19.04), , , (imangokhudza Debian 10 Buster) ndi . RHEL ndi CentOS sizikukhudzidwa ndi vutoli, chifukwa Exim sichikuphatikizidwa muzosungira zawo zokhazikika (mu sinthani pano ). Mu SUSE/openSUSE chiwopsezo sichikuwoneka chifukwa chogwiritsa ntchito nthambi ya Exim 4.88.
Source: opennet.ru