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Alpine Linux: CVE-2023-1999: Double Free

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Alpine Linux: CVE-2023-1999: Double Free

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
06/20/2023
Created
04/09/2024
Added
03/26/2024
Modified
04/09/2024

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)

  • alpine-linux-upgrade-libwebp

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