CVE-2015-7674

Updated gdk-pixbuf packages fix security vulnerabilities:

Security researcher Gustavo Grieco reported a heap overflow in gdk-pixbuf before 2.32.0. This issue is triggered by the scaling of a malformed tga format image and results in a potentially exploitable crash (CVE-2015-7673).

Security researcher Gustavo Grieco reported a heap overflow in gdk-pixbuf before 2.32.1. This issue is triggered by the scaling of a malformed gif format image (CVE-2015-7674).

These are all security issues fixed in the gdk-pixbuf-devel-2.36.0-1.1 package on the GA media of openSUSE Tumbleweed.

gtk2 was updated to fix two security issues.

These security issues were fixed:

• CVE-2015-4491: Integer overflow in the make_filter_table function in pixops/pixops.c in gdk-pixbuf before 2.31.5, allowed remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow and application crash) via crafted bitmap dimensions that were mishandled during scaling (bsc#942801).
• CVE-2015-7674: Fix overflow when scaling GIF files (bsc#948791).

This non-security issue was fixed:

• Add the script which generates gdk-pixbuf64.loaders to the spec file (bsc#922741).

The gdk pixbuf library was updated to fix three security issues.

These security issues were fixed:

• CVE-2015-7673: Fix some more overflows scaling a gif (bsc#948791)
• CVE-2015-4491: Check for overflow before allocating memory when scaling (bsc#942801)
• CVE-2015-7673: Fix an overflow and DoS when scaling TGA files (bsc#948790).
• CVE-2015-7674: Fix overflow when scaling GIF files(bsc#948791).

The gdk pixbuf library was updated to fix three security issues.

These security issues were fixed:

• CVE-2015-7673: Fix some more overflows scaling a gif (bsc#948791)
• CVE-2015-4491: Check for overflow before allocating memory when scaling (bsc#942801)
• CVE-2015-7673: Fix an overflow and DoS when scaling TGA files (bsc#948790).
• CVE-2015-7674: Fix overflow when scaling GIF files(bsc#948791).

Integer overflow in the pixops_scale_nearest function in pixops/pixops.c in gdk-pixbuf before 2.32.1 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted GIF image file, which triggers a heap-based buffer overflow.

Gustavo Grieco discovered that the GDK-PixBuf library did not properly handle scaling tga image files, leading to a heap overflow. If a user or automated system were tricked into opening a tga image file, a remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-7673)

Gustavo Grieco discovered that the GDK-PixBuf library contained an integer overflow when handling certain GIF images. If a user or automated system were tricked into opening a GIF image file, a remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-7674)