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Alma Linux: CVE-2023-1999: Important: libwebp security update (ALSA-2023-2078)

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Alma Linux: CVE-2023-1999: Important: libwebp security update (ALSA-2023-2078)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/02/2023
Created
05/05/2023
Added
05/04/2023
Modified
04/19/2024

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)

  • alma-upgrade-libwebp
  • alma-upgrade-libwebp-devel

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