vulnerability
Amazon Linux AMI 2: CVE-2023-1999: Security patch for firefox, thunderbird (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:S/C:C/I:N/A:N) | Jun 20, 2023 | Sep 28, 2023 | May 20, 2026 |
Severity
6
CVSS
(AV:N/AC:M/Au:S/C:C/I:N/A:N)
Published
Jun 20, 2023
Added
Sep 28, 2023
Modified
May 20, 2026
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.
Solutions
amazon-linux-ami-2-upgrade-firefoxamazon-linux-ami-2-upgrade-firefox-debuginfoamazon-linux-ami-2-upgrade-thunderbirdamazon-linux-ami-2-upgrade-thunderbird-debuginfo
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.