CVE-2023-5388 Information disclosure in Firefox
Medium 6.5
Published
Updated
Check this codebase for CVE-2023-5388 and fix it if it is affected.
What it is: CVE-2023-5388 is a medium-severity vulnerability in Debian Debian Linux, published on 19 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-5388 in the wild and no public exploit code.
Affected product: Debian Debian Linux. 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-2023-5388/ (Markdown: https://insights.sbomify.com/CVE-2023-5388/index.md)
An attacker can recover private data via a timing side-channel attack during RSA decryption in Mozilla Firefox and Thunderbird.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-5388?
CVE-2023-5388 is a medium-severity vulnerability in Debian Debian Linux, published on 19 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to recover the private data. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.
Weakness: CWE-203
Which versions are affected by CVE-2023-5388?
It affects 3 products.
Linux distribution packages (40)
nss AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-devel AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-softokn AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-softokn-devel AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-softokn-freebl AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-softokn-freebl-devel AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-sysinit AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-tools AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-util AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nss-util-devel AlmaLinux:8 | All versions | 3.90.0-4.el8_9 |
nspr AlmaLinux:9 | All versions | 4.35.0-4.el9_3 |
nspr-devel AlmaLinux:9 | All versions | 4.35.0-4.el9_3 |
nss AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-devel AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-softokn AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-softokn-devel AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-softokn-freebl AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-softokn-freebl-devel AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-sysinit AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-tools AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-util AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss-util-devel AlmaLinux:9 | All versions | 3.90.0-4.el9_3 |
nss Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-softokn Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-softokn-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-softokn-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-softokn-freebl Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-softokn-freebl-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-softokn-freebl-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-sysinit Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-sysinit-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-tools Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-tools-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-util Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-util-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nss-util-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:3.90.0-4.el8_9 |
nspr Red Hat:enterprise_linux:9::appstream | All versions | 0:4.35.0-4.el9_3 |
Products include Debian Debian Linux, Mozilla Firefox, Mozilla Thunderbird.
How do I fix CVE-2023-5388?
Upgrade to a fixed version.
Is CVE-2023-5388 being exploited?
There is no known exploitation of CVE-2023-5388 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2023-5388, ALSA-2024:0105, ALSA-2024:0108, BELL-CVE-2023-5388, CLSA-2025-1739975489, CLSA-2025-1756961235 and 20 more.