sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.

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.

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.

Heap-based buffer overflow in Mozilla Network Security Services (NSS) before 3.19.2.3 and 3.20.x and 3.21.x before 3.21.1, as used in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7, allows remote attackers to execute arbitrary code via crafted ASN.1 data in an X.509 certificate.

kextd in Kext Management in Apple iOS before 7 does not properly verify authorization for IPC messages, which allows local users to (1) load or (2) unload kernel extensions via a crafted message.

Mobile Safari in Apple iOS before 7 allows remote attackers to spoof the URL bar via a crafted web site.

Mobile Safari in Apple iOS before 7 does not prevent HTML interpretation of a document served with a text/plain content type, which allows remote attackers to conduct cross-site scripting (XSS) attacks by uploading a file.

The IOSerialFamily driver in Apple iOS before 7 allows attackers to execute arbitrary code or cause a denial of service (out-of-bounds array access) via a crafted application.

The Twitter subsystem in Apple iOS before 7 does not require API conformity for access to Twitter daemon interfaces, which allows attackers to post Tweets via a crafted app that sends direct requests to the daemon.

The kernel in Apple iOS before 7 uses an incorrect data size for a certain integer variable, which allows attackers to cause a denial of service (infinite loop and device hang) via a crafted application, related to an "integer truncation vulnerability."