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MFSA2023-14 Firefox: Security Vulnerabilities fixed in Firefox ESR 102.10 (CVE-2023-1999)

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MFSA2023-14 Firefox: Security Vulnerabilities fixed in Firefox ESR 102.10 (CVE-2023-1999)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/11/2023
Created
05/05/2023
Added
04/17/2023
Modified
07/07/2023

Description

There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free. 

Solution(s)

  • mozilla-firefox-esr-upgrade-102_10

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