A flaw was found in the bash functionality that evaluates specially formatted environment variables passed to it from another environment. An attacker could use this feature to override or bypass restrictions to the environment to execute shell commands before restrictions have been applied. Certain services and applications allow remote unauthenticated attackers to provide environment variables, allowing them to exploit this issue.
Acknowledgements:
Red Hat would like to thank Stephane Chazelas for reporting this issue.
GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the modcgi and modcgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271.
An out-of-bounds read flaw was found in the way Expat processed certain input. A remote attacker could send specially crafted XML that, when parsed by an application using the Expat library, would cause that application to crash or, possibly, execute arbitrary code with the permission of the user running the application.
Multiple buffer overflows in GraphicsMagick 1.3.23 allow remote attackers to cause a denial of service (crash) via a crafted SVG file, related to the (1) TracePoint function in magick/render.c, (2) GetToken function in magick/utility.c, and (3) GetTransformTokens function in coders/svg.c.
GraphicsMagick 1.3.23 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted SVG file, related to the (1) DrawImage function in magick/render.c, (2) SVGStartElement function in coders/svg.c, and (3) TraceArcPath function in magick/render.c.
kiwi before 4.98.08, as used in SUSE Studio Onsite 1.2 before 1.2.1 and SUSE Studio Extension for System z 1.2 before 1.2.1, allows attackers to execute arbitrary commands via shell metacharacters in the path of an overlay file, related to chown.
kiwi before 4.85.1, as used in SUSE Studio Onsite 1.2 before 1.2.1 and SUSE Studio Extension for System z 1.2 before 1.2.1, allows attackers to execute arbitrary commands as demonstrated by "double quotes in kiwioemtitle of .profile."
Cross-site scripting (XSS) vulnerability in the overlay files tab in SUSE Studio Onsite 1.2 before 1.2.1 and SUSE Studio Extension for System z 1.2 before 1.2.1 allows remote attackers to inject arbitrary web script or HTML via a crafted application, related to cloning.
kiwi before 4.98.05, as used in SUSE Studio Onsite 1.2 before 1.2.1 and SUSE Studio Extension for System z 1.2 before 1.2.1, allows attackers to execute arbitrary commands via shell metacharacters in an image name.
Last updated 15 January 2025
Heap-based buffer overflow in compression-pointer processing in core/ngxresolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response.
GraphicsMagick, a comprehensive image processing package, is found to have a vulnerability which can be exploited by malicious people to cause a Denial of Service (DoS).
The vulnerability is caused due to an error within the "ExportAlphaQuantumType()" function found in magick/export.c when exporting 8-bit RGBA images, which can be exploited to cause a crash.
The vulnerability is reported in versions prior to 1.3.18, Fedora 19 already ships with 1.3.18, so it doesn't seem to be affected.
References: https://bugs.gentoo.org/showbug.cgi?id=488050
Added checks to prevent overflow in rle file.
CVE assignment:
http://seclists.org/oss-sec/2016/q2/459
Upstream patch:
https://anonscm.debian.org/cgit/collab-maint/imagemagick.git/commit/?h=debian-patches/6.8.9.9-4-for-upstream&id=2d90693af41a363a988a9db3a91a15f9ca7c7370
Fix crash due to corrupted dib file.
CVE assignment:
http://seclists.org/oss-sec/2016/q2/459
Upstream patch:
https://anonscm.debian.org/cgit/collab-maint/imagemagick.git/commit/?h=debian-patches/6.8.9.9-4-for-upstream&id=a7a7fd3ce95b7b8efb0ce1ce40f43dbbd20d8e03
Fix another out of bound problem in rle file.
CVE assignment:
http://seclists.org/oss-sec/2016/q2/459
Upstream patch:
https://anonscm.debian.org/cgit/collab-maint/imagemagick.git/commit/?h=debian-patches/6.8.9.9-4-for-upstream&id=36ed9419a68cb1356b1843b48cc12788179cdaee