Thaum twg tsis pub dhau thawj zaug pib tshwm sim?
Thaum twg tsis pub dhau thawj zaug pib tshwm sim?

Video: Thaum twg tsis pub dhau thawj zaug pib tshwm sim?

Video: Thaum twg tsis pub dhau thawj zaug pib tshwm sim?
Video: Vajtswv Thaum Twg Koj Mam Los-NKAUJ NTSEEG TAWM TSHIAB (VamNeebLauj NpawgLem) Original MV by Chichia 2024, Kaum ib hlis
Anonim

Cov thawj buffer overflow nres pib tshwm sim xyoo 1988. Nws tau hu ua Morris Internet worm. A dej ntws attack exposes vulnerabilities nyob rau hauv ib qhov kev pab cuam. Nws dej nyab lub cim xeeb nrog cov ntaub ntawv uas ntau tshaj li qhov program tswj tau.

Nyob rau hauv tas li ntawd, yuav ua li cas yog ib tug buffer overflow nres?

A tsis pub dhau tshwm sim thaum ib qho kev pab cuam lossis cov txheej txheem sim sau cov ntaub ntawv ntxiv rau qhov thaiv ntev ntev ntawm lub cim xeeb, lossis tsis pub , dua li tsis pub yog faib los tuav. Kev siv a tsis pub dhau tso cai rau tus neeg tawm tsam los tswj lossis tsoo cov txheej txheem lossis hloov kho nws qhov hloov pauv sab hauv.

Tsis tas li ntawd, Java puas muaj kev cuam tshuam rau kev tawm tsam tsis txaus? C++ yog tshwj xeeb yooj yim rau buffer overflow . Txawm li cas los xij, Java yog tsim los zam lub tsis pub dhau los ntawm kev txheeb xyuas cov ciam teb ntawm a tsis pub (zoo li ib qho array) thiab tiv thaiv kev nkag mus dhau ntawm cov ciam teb.

Raws li kev sib raug zoo, vim li cas thiaj li muaj qhov tsis zoo ntawm qhov tsis txaus ntseeg?

Cov ntsiab lus tseem ceeb ntawm Tsis Muaj Dej Qhov no yuam kev tshwm sim thaum muaj yog ntau cov ntaub ntawv hauv a tsis pub dua li nws ua tau tuav, ua rau cov ntaub ntawv dej ntws nyob rau hauv ib qho chaw cia khoom. Qhov no qhov yooj yim tuaj yeem ua rau lub cev sib tsoo lossis, phem dua, tsim qhov nkag rau hauv cyberattack. C thiab C++ yog ntau raug rau tsis pub dhau.

Hom kev tawm tsam dab tsi yog qhov tsis txaus?

Stack overflow nres - Qhov no yog qhov feem ntau hom ntawm buffer overflow nres thiab koom nrog dej ntws a tsis pub ntawm hu pawg *. Heap overflow nres - Qhov no hom kev tawm tsam lub hom phiaj cov ntaub ntawv nyob rau hauv lub qhib nco pas hu ua heap *.

Pom zoo: