An issue was discovered in certain Apple products. iOS before 11 is affected. macOS before 10.13 is affected. tvOS before 11 is affected. watchOS before 4 is affected. The issue involves the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.

An issue was discovered in certain Apple products. iOS before 11 is affected. The issue involves the "Profiles" component. It does not enforce the configuration profile's settings for whether pairings are allowed.

In iOS before 9.3.3, a memory corruption issue existed in the kernel. This issue was addressed through improved memory handling.

In iOS before 9.3.3, tvOS before 9.2.2, and OS X El Capitan before v10.11.6 and Security Update 2016-004, a downgrade issue existed with HTTP authentication credentials saved in Keychain. This issue was addressed by storing the authentication types with the credentials.

In iOS before 9.3.3, tvOS before 9.2.2, and OS X El Capitan before v10.11.6 and Security Update 2016-004, a validation issue existed in the parsing of 407 responses. This issue was addressed through improved response validation.

In iOS before 9.3.3, tvOS before 9.2.2, and OS X El Capitan before v10.11.6 and Security Update 2016-004, proxy authentication incorrectly reported HTTP proxies received credentials securely. This issue was addressed through improved warnings.

libtiff: divide by zero in the tiffdither tool

The _TIFFmalloc function in tif_unix.c in LibTIFF 4.0.3 does not reject a zero size, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted TIFF image that is mishandled by the TIFFWriteScanline function in tif_write.c, as demonstrated by tiffdither.

libtiff: out-of-bounds read/write with malformed TIFF image in tiff2pdf

LibTIFF 4.0.3 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact via a crafted TIFF image, as demonstrated by failure of tif_next.c to verify that the BitsPerSample value is 2, and the t2p_sample_lab_signed_to_unsigned function in tiff2pdf.c.

libtiff: out-of-bounds write in multiple tools

LibTIFF prior to 4.0.4, as used in Apple iOS before 8.4 and OS X before 10.10.4 and other products, allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted TIFF image.

Use after free in Sharing in Google Chrome on iOS prior to 127.0.6533.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Use after free in Downloads in Google Chrome on iOS prior to 127.0.6533.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)