Mozilla launched emergency safety updates at present to repair a crucial zero-day vulnerability exploited within the wild, impacting its Firefox net browser and Thunderbird e-mail shopper.
Tracked as CVE-2023-4863, the safety flaw is brought on by a heap buffer overflow within the WebP code library (libwebp), whose impression spans from crashes to arbitrary code execution.
“Opening a malicious WebP picture might result in a heap buffer overflow within the content material course of. We’re conscious of this challenge being exploited in different merchandise within the wild,” Mozilla said in an advisory printed on Tuesday.
Mozilla addressed the exploited zero-day in Firefox 117.0.1, Firefox ESR 115.2.1, Firefox ESR 102.15.1, Thunderbird 102.15.1, and Thunderbird 115.2.2.
Despite the fact that particular particulars relating to the WebP flaw’s exploitation in assaults stay undisclosed, this crucial vulnerability is being abused in real-world situations.
Therefore, customers are strongly suggested to put in up to date variations of Firefox and Thunderbird to safeguard their programs towards potential assaults.
As Mozilla revealed in at present’s safety advisory, the CVE-2023-4863 zero-day additionally impacts different software program utilizing the weak WebP code library model.
One among them is the Google Chrome net browser, which was patched towards this flaw on Monday when Google warned that it is “conscious that an exploit for CVE-2023-4863 exists within the wild.”
The Chrome safety updates are rolling out to customers within the Secure and Prolonged steady channels and are anticipated to succeed in your entire person base over the approaching days or perhaps weeks.
Apple’s Safety Engineering and Structure (SEAR) group and The Citizen Lab on the College of Toronto’s Munk College have been those who reported the bug on September sixth.
The safety researchers at Citizen Lab even have a historical past of figuring out and disclosing zero-day vulnerabilities incessantly exploited in focused espionage campaigns led by government-affiliated menace actors.
These campaigns usually concentrate on people at important threat of assault, together with journalists, opposition politicians, and dissidents.
On Thursday, Apple additionally patched two zero-days tagged by Citizen Lab as exploited within the wild as a part of an exploit chain dubbed BLASTPASS to deploy NSO Group’s Pegasus mercenary adware onto fully patched iPhones.
As we speak, the BLASTPASS patches have been additionally backported to older iPhone models, together with iPhone 6s fashions, the iPhone 7, and the primary technology of iPhone SE.
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