CVE-2020-12268 Memory corruption in n/a
Critical 9.8
Published
Updated
Check this codebase for CVE-2020-12268 and fix it if it is affected.
What it is: CVE-2020-12268 is a critical memory corruption vulnerability in Debian Debian Linux, published on 27 Apr 2020. 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-2020-12268 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-2020-12268/ (Markdown: https://insights.sbomify.com/CVE-2020-12268/index.md)
A heap-based buffer overflow in the jbig2dec library allows attackers to execute arbitrary code or cause denial of service via crafted JBIG2 images.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-12268?
CVE-2020-12268 is a critical memory corruption vulnerability in Debian Debian Linux, published on 27 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
jbig2_image_compose in jbig2_image.c in Artifex jbig2dec before 0.18 has a heap-based buffer overflow.
Weakness: CWE-787
Which versions are affected by CVE-2020-12268?
It affects 3 products.
Linux distribution packages (40)
jbig2dec Red Hat:enterprise_linux:8::appstream | All versions | 0:0.14-4.el8_2 |
jbig2dec-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:0.14-4.el8_2 |
jbig2dec-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:0.14-4.el8_2 |
jbig2dec-libs Red Hat:enterprise_linux:8::appstream | All versions | 0:0.14-4.el8_2 |
jbig2dec-libs-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:0.14-4.el8_2 |
jbig2dec Red Hat:rhel_e4s:8.0::appstream | All versions | 0:0.14-4.el8_0 |
jbig2dec-debuginfo Red Hat:rhel_e4s:8.0::appstream | All versions | 0:0.14-4.el8_0 |
jbig2dec-debugsource Red Hat:rhel_e4s:8.0::appstream | All versions | 0:0.14-4.el8_0 |
jbig2dec-libs Red Hat:rhel_e4s:8.0::appstream | All versions | 0:0.14-4.el8_0 |
jbig2dec-libs-debuginfo Red Hat:rhel_e4s:8.0::appstream | All versions | 0:0.14-4.el8_0 |
jbig2dec Red Hat:rhel_eus:8.1::appstream | All versions | 0:0.14-4.el8_1 |
jbig2dec-debuginfo Red Hat:rhel_eus:8.1::appstream | All versions | 0:0.14-4.el8_1 |
jbig2dec-debugsource Red Hat:rhel_eus:8.1::appstream | All versions | 0:0.14-4.el8_1 |
jbig2dec-libs Red Hat:rhel_eus:8.1::appstream | All versions | 0:0.14-4.el8_1 |
jbig2dec-libs-debuginfo Red Hat:rhel_eus:8.1::appstream | All versions | 0:0.14-4.el8_1 |
ghostscript SUSE:Enterprise Storage 5 | All versions | 9.52-23.34.1 |
libspectre SUSE:Enterprise Storage 5 | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:HPE Helion OpenStack 8 | All versions | 9.52-23.34.1 |
libspectre SUSE:HPE Helion OpenStack 8 | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 9.52-3.27.2 |
libspectre SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 0.2.8-3.10.1 |
ghostscript SUSE:Linux Enterprise High Performance Computing 15-LTSS | All versions | 9.52-3.27.2 |
libspectre SUSE:Linux Enterprise High Performance Computing 15-LTSS | All versions | 0.2.8-3.10.1 |
ghostscript SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 9.52-3.27.2 |
libspectre SUSE:Linux Enterprise Module for Desktop Applications 15 SP1 | All versions | 0.2.8-3.10.1 |
ghostscript SUSE:Linux Enterprise Server 12 SP1-LTSS | All versions | 9.52-23.34.1 |
libspectre SUSE:Linux Enterprise Server 12 SP1-LTSS | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 9.52-23.34.1 |
libspectre SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:Linux Enterprise Server 12 SP2-LTSS | All versions | 9.52-23.34.1 |
libspectre SUSE:Linux Enterprise Server 12 SP2-LTSS | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 9.52-23.34.1 |
libspectre SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 9.52-23.34.1 |
libspectre SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:Linux Enterprise Server 12 SP4 | All versions | 9.52-23.34.1 |
libspectre SUSE:Linux Enterprise Server 12 SP4 | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:Linux Enterprise Server 12 SP5 | All versions | 9.52-23.34.1 |
libspectre SUSE:Linux Enterprise Server 12 SP5 | All versions | 0.2.7-12.10.1 |
ghostscript SUSE:Linux Enterprise Server 15-LTSS | All versions | 9.52-3.27.2 |
Products include Artifex Jbig2dec, Debian Debian Linux, Opensuse Leap.
How do I fix CVE-2020-12268?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-12268 being exploited?
There is no known exploitation of CVE-2020-12268 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2020-12268, DEBIAN-CVE-2020-12268, GHSA-ccx8-28wr-3jgq, MGASA-2020-0213, RHSA-2020:2897, RHSA-2020:2971 and 5 more.