Security readout for executives and security teams
CVE-2023-0645 is a memory read flaw in libjxl, the JPEG XL library. A crafted file can trigger an out-of-bounds read in EXIF metadata handling. The public record recommends upgrading to libjxl 0.8.1 or a build including the named upstream commit. Exposure is most likely where libjxl 0.7.0 processes JPEG XL files or image metadata, especially files from users, partners, web uploads, mail, or media pipelines. The source bundle does not identify affected downstream products or CPEs. Treat as a routine but real remediation item for systems handling untrusted images. The business concern is potential sensitive memory disclosure from vulnerable image processing, not service takeover or confirmed widespread exploitation. Mitigation focus: Upgrade libjxl to version 0.8.1 or a build containing commit d95b050c1822a5b1ede9e0dc937e43fca1b10159.; Check downstream OS, container, and application vendor guidance before changing packaged dependencies.; Prioritize systems that process untrusted images or metadata..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2023-0645 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
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SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N1.63.6GoogleVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159CVE reference, Google
- https://github.com/libjxl/libjxl/pull/2101CVE reference, Google
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.