Home/CVE/There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop
CVE

CVE-2023-1999

There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop

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.

MEDIUM · CVSS 5.3 EPSS 0.00353
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-415Double Free
CWE-416Use After Free
CWE-416Use After Free
▤

Affected Products & Versions

1
webmproject libwebp>= 0.4.2 and < 1.3.1
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cve-coordination@google.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Jun 2023 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

30
suse-csafopenSUSE-SU-2024:13019-1
msrcCVE-2023-1999
usnUSN-6078-2
suse-csafSUSE-SU-2023:2552-1
suse-csafSUSE-SU-2023:2490-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://chromium.googlesource.com/webm/libwebpProduct
https://security.gentoo.org/glsa/202309-05
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