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A flaw was found in all versions of ghostscript 9.x before 9.28, where the `.charkeys` procedure, where it did not properly secure its privileged calls, enabling scripts to bypass `-dSAFER` restrictions. An attacker could abuse this flaw by creating a specially crafted PostScript file that could escalate privileges within the Ghostscript and access files outside of restricted areas or execute commands. References: https://nvd.nist.gov/vuln/detail/CVE-2019-14869 Upstream patches: https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=485904 (From OE-Core rev: 0bb88ac63b4e1728373c6425477a32f7a6362b2c) Signed-off-by: Stefan Ghinea <stefan.ghinea@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.