CVE-2021-36692

MEDIUM
Published Aug 30, 20214y ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Aug 30, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

libjxl v0.3.7 is affected by a Divide By Zero in issue in lib/extras/codec_apng.cc jxl::DecodeImageAPNG(). When encoding a malicous APNG file using cjxl, an attacker can trigger a denial of service.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-369

Affected Products 1

VendorProductVersionRange
libjxl_projectlibjxl0.3.7any

References 3

  • github.com https://github.com/libjxl/libjxl/commit/7dfa400ded53919d986c5d3d23446a09e0cf481b
    PatchThird Party Advisory
  • github.com https://github.com/libjxl/libjxl/issues/308
    ExploitIssue TrackingThird Party Advisory
  • github.com https://github.com/libjxl/libjxl/pull/313
    PatchThird Party Advisory

Remediation

  • github.com https://github.com/libjxl/libjxl/commit/7dfa400ded53919d986c5d3d23446a09e0cf481b
    PatchThird Party Advisory
  • github.com https://github.com/libjxl/libjxl/pull/313
    PatchThird Party Advisory