{"id":462286,"date":"2022-09-28T09:16:48","date_gmt":"2022-09-28T07:16:48","guid":{"rendered":"https:\/\/mybroadband.co.za\/news\/?p=462286"},"modified":"2022-09-28T09:19:28","modified_gmt":"2022-09-28T07:19:28","slug":"whatsapp-patches-critical-security-flaws","status":"publish","type":"post","link":"https:\/\/mybroadband.co.za\/news\/security\/462286-whatsapp-patches-critical-security-flaws.html","title":{"rendered":"WhatsApp patches critical security flaws"},"content":{"rendered":"

WhatsApp released security updates to fix two vulnerabilities in its Android and iOS apps that attackers could have exploited to execute remote code on vulnerable devices, The Hacker News reports<\/a><\/strong>.<\/p>\n

The more severe of the two flaws \u2014 CVE-2022-36934 with a Common Vulnerability Scoring System (CVSS) score of 9.8 \u2014 relates to a critical integer overflow vulnerability that could result in remote code execution in an established video call.<\/p>\n

With a CVSS score of 7.8, the second vulnerability is less severe. However, it relates to an integer overflow that attackers could exploit to execute remote code when receiving a crafted video file. It is tracked as CVE-2022-27492.<\/p>\n

According to Malwarebytes<\/a><\/strong>, the bugs concern a piece of code in the Video Call Handler and Video File Handler WhatsApp components.<\/p>\n

Malicious actors exploiting the critical-severity CVE-2022-36934 vulnerability could manipulate the bug in the Video Call Handler to trigger a heap-based overflow, allowing them to take complete control of the app.<\/p>\n

The second flaw involved an integer underflow that attackers could exploit for remote code execution.<\/p>\n

However, to take advantage of the flaw, they must send a malicious video file to the user’s WhatsApp messenger and convince them to open it.<\/p>\n

The critical severity CVE-2022-36934 vulnerability impacts WhatsApp and WhatsApp Business apps for iOS and Android earlier than version 2.22.16.12.<\/p>\n

The high-severity CVE-2022-27492 flaw impacts WhatsApp’s Android apps older than version 2.22.16.2 and its iOS apps older than version 2.22.15.9.<\/p>\n

Malwarebytes explained that integer underflow bugs\u00a0lead to undefined behaviour and crashes.<\/p>\n

“In the case of overflows involving loop index variables, the likelihood of infinite loops is also high,” it stated.<\/p>\n

\n

Now read: Powerful new malware disguised as game cheats can steal credit card details and crypto<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

Attackers could have exploited the vulnerabilities to hack devices remotely.<\/p>\n","protected":false},"author":341076,"featured_media":439160,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sma_x_autopost_status":"idle","_sma_x_autopost_error":"","_sma_x_post_id":"","_sma_facebook_post_id":"","_sma_instagram_post_id":"","_sma_threads_post_id":"","_sma_x_attempts":0,"footnotes":""},"categories":[27],"tags":[71764,31208,75906,2594],"class_list":["post-462286","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security","tag-common-vulnerabilities-and-exposures-cve","tag-malwarebytes","tag-remote-code-execution-rce","tag-whatsapp"],"_links":{"self":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/462286"}],"collection":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/users\/341076"}],"replies":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/comments?post=462286"}],"version-history":[{"count":1,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/462286\/revisions"}],"predecessor-version":[{"id":462302,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/462286\/revisions\/462302"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/media\/439160"}],"wp:attachment":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/media?parent=462286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/categories?post=462286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/tags?post=462286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}