7.5

CVE-2023-1999: chromium libwebp Use After Free

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2023-1999SUSE-SU-2023:2467-1SUSE-SU-2023:2490-1
Published 20-06-2023Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2023-1999 is a high (CVSS 7.5) Use After Free vulnerability in chromium libwebp. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.6% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 21 · Related 1
DLA-3391-1DLA-3400-1DSA-5385-1DSA-5392-1RHSA-2023:1785RHSA-2023:1786

Timeline

  1. 20-06-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.95%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

0.00 pp

From 0.95% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.95%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Suse19 products
  • libwebp&distro=HPE Helion OpenStack 8< 0.4.3-4.10.1
  • libwebp&distro=SUSE Linux Enterprise Module for Basesystem 15 SP4< 1.0.3-150200.3.5.1
  • libwebp&distro=SUSE Linux Enterprise Module for Basesystem 15 SP5< 1.0.3-150200.3.5.1
  • libwebp&distro=SUSE Linux Enterprise Module for Package Hub 15 SP4< 1.0.3-150200.3.5.1 | < 0.5.0-150000.3.11.1
  • libwebp&distro=SUSE Linux Enterprise Module for Package Hub 15 SP5< 1.0.3-150200.3.5.1 | < 0.5.0-150000.3.11.1
Redhat8 products
  • libwebp< 0:1.0.0-7.el8_2 | < 0:1.0.0-5.2.el8_1 | < 0:1.2.0-5.el9_0 | < 0:1.0.0-8.el8_7 | < 0:0.3.0-11.el7 | < 0:1.2.0-6.el9_1 | < 0:1.0.0-7.el8_4 | < 0:1.0.0-7.el8_6
  • libwebp-debuginfo< 0:1.0.0-7.el8_2 | < 0:1.0.0-5.2.el8_1 | < 0:1.2.0-5.el9_0 | < 0:1.0.0-8.el8_7 | < 0:0.3.0-11.el7 | < 0:1.2.0-6.el9_1 | < 0:1.0.0-7.el8_4 | < 0:1.0.0-7.el8_6
  • libwebp-debugsource< 0:1.0.0-7.el8_2 | < 0:1.0.0-5.2.el8_1 | < 0:1.2.0-5.el9_0 | < 0:1.0.0-8.el8_7 | < 0:1.2.0-6.el9_1 | < 0:1.0.0-7.el8_4 | < 0:1.0.0-7.el8_6
  • libwebp-devel< 0:1.0.0-7.el8_2 | < 0:1.0.0-5.2.el8_1 | < 0:1.2.0-5.el9_0 | < 0:1.0.0-8.el8_7 | < 0:0.3.0-11.el7 | < 0:1.2.0-6.el9_1 | < 0:1.0.0-7.el8_4 | < 0:1.0.0-7.el8_6
  • libwebp-java< 0:0.3.0-11.el7
Ubuntu7 products
  • libwebpAll versions (No fix recorded) | < 0.4.4-1ubuntu0.1~esm2 | < 0.6.1-2ubuntu0.18.04.2 | < 0.6.1-2ubuntu0.20.04.2 | < 1.2.2-2ubuntu0.22.04.1
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
  • mozjs78All versions (No fix recorded)
Debian3 products
  • firefox-esr< 102.10.0esr-1
  • libwebp< 1.2.4-0.2 | < 0.6.1-2.1+deb11u1 | < 0.6.1-2+deb10u2
  • thunderbird< 1:102.10.0-1
Opensuse3 products
  • libwebp&distro=openSUSE Leap 15.4< 1.0.3-150200.3.5.1 | < 0.5.0-150000.3.11.1
  • libwebp&distro=openSUSE Leap 15.5< 1.0.3-150200.3.5.1
  • libwebp&distro=openSUSE Tumbleweed< 1.3.0-2.1
Alpine1 product
  • libwebp≥ 0.4.2, < 1.2.2-r1 | ≥ 0.4.2, < 1.2.3-r1 | ≥ 0.4.2, < 1.2.4-r2 | ≥ 0.4.2, < 1.3.0-r2 | ≥ 0.4.2, < 1.3.0-r3
Chromium1 product
  • libwebp≥ 0.4.2, < 1.3.1 | ≥ 0.4.2, < 1.3.0-8-ga486d800
Webmproject1 product

8 vendors · 43 products

References

36 links
Show all 36 references