CVE-2020-35492

A flaw was found in cairo's image-compositor.c in all versions prior to 1.17.4. This flaw allows an attacker who can provide a crafted input file to cairo's image-compositor (for example, by convincing a user to open a file in an application using cairo, or if an application uses cairo on untrusted input) to cause a stack buffer overflow -> out-of-bounds WRITE. The highest impact from this vulnerability is to confidentiality, integrity, as well as system availability.

A flaw was found in cairo's image-compositor.c in all versions prior to 1.17.4. This flaw allows an attacker who can provide a crafted input file to cairo's image-compositor (for example, by convincing a user to open a file in an application using cairo, or if an application uses cairo on untrusted input) to cause a stack buffer overflow -> out-of-bounds WRITE. The highest impact from this vulnerability is to confidentiality, integrity, as well as system availability.

A flaw was found in cairo's image-compositor.c in all versions prior to 1.17.4. This flaw allows an attacker who can provide a crafted input file to cairo's image-compositor (for example, by convincing a user to open a file in an application using cairo, or if an application uses cairo on untrusted input) to cause a stack buffer overflow -> out-of-bounds WRITE. The highest impact from this vulnerability is to confidentiality, integrity, as well as system availability.

Security Fix(es):

A flaw was found in cairo's image-compositor.c in all versions prior to 1.17.4. This flaw allows an attacker who can provide a crafted input file to cairo's image-compositor (for example, by convincing a user to open a file in an application using cairo, or if an application uses cairo on untrusted input) to cause a stack buffer overflow -> out-of-bounds WRITE. The highest impact from this vulnerability is to confidentiality, integrity, as well as system availability.(CVE-2020-35492)

Cairo is a 2D graphics library designed to provide high-quality display and print output.

Pixman is a pixel manipulation library for the X Window System and Cairo.

Security Fix(es):

• cairo: libreoffice slideshow aborts with stack smashing in cairo's composite_boxes (CVE-2020-35492)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.6 Release Notes linked from the References section.

A flaw was found in cairo's image-compositor.c in all versions prior to 1.17.4. This flaw allows an attacker who can provide a crafted input file to cairo's image-compositor (for example, by convincing a user to open a file in an application using cairo, or if an application uses cairo on untrusted input) to cause a stack buffer overflow -> out-of-bounds WRITE. The highest impact from this vulnerability is to confidentiality, integrity, as well as system availability.

Cairo is a 2D graphics library designed to provide high-quality display and print output.

Pixman is a pixel manipulation library for the X Window System and Cairo.

Security Fix(es):

• cairo: libreoffice slideshow aborts with stack smashing in cairo's composite_boxes (CVE-2020-35492)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

• SECURITY UPDATE: stack-based buffer overflow in the image compositor
  • debian/patches/CVE-2020-35492.patch: in _inplace_src_spans() in src/cairo-image-compositor.c, take the mask write pointer from pixman_image_get_data(r->mask) instead of the r->_buf tail of the stack-allocated span renderer, so a row wider than SZ_BUF (whose mask pixman already backs with a heap allocation) can no longer be written past the end of the stack buffer.
  • CVE-2020-35492

LibreOffice slideshow aborts with stack smashing in cairo’s composite_boxes (CVE-2020-35492).

Gustavo Grieco, Alberto Garcia, Francisco Oca, Suleman Ali, and others discovered that Cairo incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. (CVE-2016-9082, CVE-2017-9814, CVE-2019-6462)

Stephan Bergmann discovered that Cairo incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2020-35492)