CVE-2023-0645
Out of Bounds read in libjxl
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
5.3
Out of Bounds read in libjxl
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
- Record
CVE-2023-0645- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2023-12679
5.3
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
- Record
EUVD-2023-12679- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-378h-jm2h-7wrm
9.1
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause...
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
- Record
GHSA-378h-jm2h-7wrm- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
5.3
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
- Record
CVE-2023-0645- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
5.3
Out of Bounds read in libjxl
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
- Record
CVE-2023-0645- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2023-0645
9.1
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
- Record
DEBIAN-CVE-2023-0645- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-0645
5.3
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
- Record
UBUNTU-CVE-2023-0645- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-02
OSVUSN-7637-1 No score
jpeg-xl vulnerabilities
It was discovered that libjxl did not perform proper bounds checking when parsing Exif tags. An attacker could possibly use this issue to cause libjxl to crash, resulting in a denial of service. (CVE-2023-0645)
It was discovered that libjxl did not perform proper bounds checking when decoding patches. An attacker could possibly use this issue to cause libjxl to enter an infinite loop, resulting in a denial of service. (CVE-2023-35790)
It was discovered that libjxl did not perform proper bounds checking when performing JPEG recompression. An attacker could possibly use this issue to cause libjxl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2024-11403)
It was discovered that libjxl incorrectly handled parsing certain image files. An attacker could possibly use this issue to cause libjxl to consume excessive amounts of memory, resulting in a denial of service. (CVE-2024-11498)
- Record
USN-7637-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
jpeg-xlDebian:12 |
before 0.7.0-10+deb12u1, plus listed versions 0.7.0-10 |
0.7.0-10+deb12u1 |
jpeg-xlDebian:13 |
before 0.8.2-4 | 0.8.2-4 |
jpeg-xlDebian:14 |
before 0.8.2-4 | 0.8.2-4 |
jpeg-xlDebian:12 From an advisory covering 4 CVEs |
before 0.7.0-10+deb12u1, plus listed versions 0.7.0-10 |
0.7.0-10+deb12u1 |
jpeg-xlUbuntu:24.04:LTS |
before 0.7.0-10.2ubuntu6.1, plus listed versions 0.7.0-10ubuntu20.7.0-10.2ubuntu10.7.0-10.2ubuntu40.7.0-10.2ubuntu50.7.0-10.2ubuntu6 |
0.7.0-10.2ubuntu6.1 |
jpeg-xlUbuntu:24.04:LTS From an advisory covering 4 CVEs |
before 0.7.0-10.2ubuntu6.1, plus listed versions 0.7.0-10ubuntu20.7.0-10.2ubuntu10.7.0-10.2ubuntu40.7.0-10.2ubuntu50.7.0-10.2ubuntu6 |
0.7.0-10.2ubuntu6.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-0645 is a medium vulnerability (CVSS 5.3) in Google Libjxl, published April 11, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. Fixed in jpeg-xl 0.7.0-10+deb12u1.
References
github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
github.com/libjxl/libjxl/pull/2101
openwall.com/lists/oss-security/2026/06/29/3
nvd.nist.gov/vuln/detail/CVE-2023-0645
github.com/advisories/GHSA-378h-jm2h-7wrm
github.com/CVEProject/cvelistV5/tree/main/cves/2023/0xxx/CVE-2023-0645.json