CVE-2017-7890 Information disclosure in n/a
Medium 6.5
Published
Updated
Check this codebase for CVE-2017-7890 and fix it if it is affected.
What it is: CVE-2017-7890 is a medium-severity vulnerability in Php Php, published on 2 Aug 2017. 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-2017-7890 in the wild and no public exploit code.
Affected product: Php Php. 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-2017-7890/ (Markdown: https://insights.sbomify.com/CVE-2017-7890/index.md)
A crafted GIF image can trigger uninitialized memory reads in libgd, allowing attackers to disclose sensitive stack data.
- 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-2017-7890?
CVE-2017-7890 is a medium-severity vulnerability in Php Php, published on 2 Aug 2017. 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 GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.31 and 7.x before 7.1.7, does not zero colorMap arrays before use. A specially crafted GIF image could use the uninitialized tables to read ~700 bytes from the top of the stack, potentially disclosing sensitive information.
Weakness: CWE-200
Which versions are affected by CVE-2017-7890?
It affects 1 product.
Linux distribution packages (40)
php Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-bcmath Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-cli Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-common Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-dba Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-devel Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-embedded Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-enchant Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-fpm Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-gd Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-intl Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-ldap Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-mbstring Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-mysql Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-mysqlnd Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-odbc Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-pdo Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-pgsql Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-process Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-pspell Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-recode Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-snmp Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-soap Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-xml Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php-xmlrpc Red Hat:enterprise_linux:7::client | All versions | 0:5.4.16-43.el7_4.1 |
php Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-bcmath Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-cli Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-common Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-dba Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-embedded Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-enchant Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-fpm Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-gd Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-intl Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-ldap Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
php-mbstring Red Hat:enterprise_linux:7::computenode | All versions | 0:5.4.16-43.el7_4.1 |
Products include Php Php.
How do I fix CVE-2017-7890?
Upgrade to a fixed version.
Is CVE-2017-7890 being exploited?
There is no known exploitation of CVE-2017-7890 in the wild and no public exploit code.
Other vulnerabilities in Php Php
Sources
Also known as ALPINE-CVE-2017-7890, DEBIAN-CVE-2017-7890, DLA-1055-1, DSA-3938-1, GHSA-2cx4-qmrc-3ff4, RHSA-2018:0406 and 2 more.