CVE-2023-40403 Information disclosure in iOS and iPadOS
Medium 6.5
Published
Updated
Check this codebase for CVE-2023-40403 and fix it if it is affected.
What it is: CVE-2023-40403 is a medium-severity vulnerability in Apple Ipados, published on 26 Sep 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-40403 in the wild and no public exploit code.
Affected product: Apple Ipados. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-40403/ (Markdown: https://insights.sbomify.com/CVE-2023-40403/index.md)
Attackers can disclose sensitive information by processing web content due to improper memory handling in Apple operating systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-40403?
CVE-2023-40403 is a medium-severity vulnerability in Apple Ipados, published on 26 Sep 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.6, tvOS 17, iOS 16.7 and iPadOS 16.7, macOS Monterey 12.7, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may disclose sensitive information.
Which versions are affected by CVE-2023-40403?
It affects 5 products.
Linux distribution packages (25)
libxslt AlmaLinux:8 | All versions | 1.1.32-6.2.el8_10 |
libxslt-devel AlmaLinux:8 | All versions | 1.1.32-6.2.el8_10 |
libxslt AlmaLinux:9 | All versions | 1.1.34-14.el9_7.1 |
libxslt-devel AlmaLinux:9 | All versions | 1.1.34-14.el9_7.1 |
libxslt-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.1.32-6.2.el8_10 |
libxslt-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:1.1.32-6.2.el8_10 |
libxslt-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:1.1.32-6.2.el8_10 |
libxslt Red Hat:enterprise_linux:8::baseos | All versions | 0:1.1.32-6.2.el8_10 |
libxslt-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1.1.32-6.2.el8_10 |
libxslt-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:1.1.32-6.2.el8_10 |
libxslt Red Hat:enterprise_linux:9::appstream | All versions | 0:1.1.34-14.el9_7.1 |
libxslt-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:1.1.34-14.el9_7.1 |
libxslt-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:1.1.34-14.el9_7.1 |
libxslt-devel Red Hat:enterprise_linux:9::appstream | All versions | 0:1.1.34-14.el9_7.1 |
libxslt Red Hat:rhel_eus:9.4::appstream | All versions | 0:1.1.34-14.el9_4 |
libxslt-debuginfo Red Hat:rhel_eus:9.4::appstream | All versions | 0:1.1.34-14.el9_4 |
libxslt-debugsource Red Hat:rhel_eus:9.4::appstream | All versions | 0:1.1.34-14.el9_4 |
libxslt-devel Red Hat:rhel_eus:9.4::appstream | All versions | 0:1.1.34-14.el9_4 |
libxslt Red Hat:rhel_eus:9.6::appstream | All versions | 0:1.1.34-13.el9_6.1 |
libxslt-debuginfo Red Hat:rhel_eus:9.6::appstream | All versions | 0:1.1.34-13.el9_6.1 |
libxslt-debugsource Red Hat:rhel_eus:9.6::appstream | All versions | 0:1.1.34-13.el9_6.1 |
libxslt-devel Red Hat:rhel_eus:9.6::appstream | All versions | 0:1.1.34-13.el9_6.1 |
libxslt Rocky Linux:8 | All versions | 0:1.1.32-6.2.el8_10 |
libxslt Rocky Linux:9 | All versions | 0:1.1.34-14.el9_7.1 |
libxslt SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | All versions | 1.1.28-17.24.1 |
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Watchos.
How do I fix CVE-2023-40403?
Apply the vendor's patch.
Is CVE-2023-40403 being exploited?
There is no known exploitation of CVE-2023-40403 in the wild and no public exploit code.
Other vulnerabilities in Apple Ipados
- CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write
- CVE-2025-24201 Apple Multiple Products WebKit Out-of-Bounds Write
- CVE-2025-24085 Apple Multiple Products Use-After-Free
- CVE-2025-31200 Apple Multiple Products Memory Corruption
- CVE-2025-31201 Apple Multiple Products Arbitrary Read and Write
Sources
Also known as ALSA-2025:8676, ALSA-2026:6266, CLSA-2026-1776443255, CLSA-2026-1778898606, DEBIAN-CVE-2023-40403, ECHO-8612-d8f6-0c6e and 11 more.