Overview
- 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.
- Source
- cve-coordination@google.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:webmproject:libwebp:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "17956DAA-EA1F-40A8-8B19-EFBFDBC36DCA",
"versionEndExcluding": "1.3.1",
"versionStartIncluding": "0.4.2"
}
],
"operator": "OR"
}
]
}
]