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7.5
HIGH CVSS 3.1
CVE-2023-1999
Use after free in libwebp
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.

INFO

Published Date :

June 20, 2023, 12:15 p.m.

Last Modified :

Feb. 13, 2025, 5:16 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2023-1999 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Webmproject libwebp
1 Microsoft edge_chromium
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
Solution
Update affected packages, including libwebp, Firefox, and Thunderbird, to remediate this vulnerability.
  • Update the affected libwebp and/or libwebp-devel packages.
  • Update the affected Firefox and Thunderbird packages.
  • Upgrade to Mozilla Firefox version 112.0 or later.
  • Upgrade to Mozilla Thunderbird version 102.10 or later.
Public PoC/Exploit Available at Github

CVE-2023-1999 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-1999.

URL Resource
https://chromium.googlesource.com/webm/libwebp Product
https://security.gentoo.org/glsa/202309-05
https://chromium.googlesource.com/webm/libwebp Product
https://security.gentoo.org/glsa/202309-05
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-1999 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-1999 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
Pazhanivelmani/webp_Android10_r33_CVE-2023-1999

None

C

Updated: 11 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Nov. 12, 2024, 11:12 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
GitHubForSnap/podcast-dl-gael

None

Shell Python

Updated: 1 month, 1 week ago
0 stars 1 fork 1 watcher
Born at : March 19, 2021, 11:41 a.m. This repo has been linked 113 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-1999 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-1999 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Feb. 13, 2025

    Action Type Old Value New Value
    Changed 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.  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.
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://chromium.googlesource.com/webm/libwebp
    Added Reference https://security.gentoo.org/glsa/202309-05
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Sep. 17, 2023

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202309-05 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 05, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://chromium.googlesource.com/webm/libwebp No Types Assigned https://chromium.googlesource.com/webm/libwebp Product
    Added CWE NIST CWE-415
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:a:webmproject:libwebp:*:*:*:*:*:*:*:* versions from (including) 0.4.2 up to (excluding) 1.3.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.44 }} -0.04%

score

0.62422

percentile