Critical. A vulnerability whose exploitation could allow code execution without user interaction. These scenarios include self-propagating malware (e.g. network worms), or unavoidable common use scenarios where code execution occurs without warnings or prompts. This could mean browsing to a web page or opening email.
A strain is a stretching or tearing of muscle or tendon. A tendon is a fibrous cord of tissue that connects muscles to bones. Strains often occur in the lower back and in the hamstring muscle in the back of your thigh. Initial treatment for both sprains and strains includes rest, ice, compression and elevation.
strain 1 (strÄn) v. strained, strainÂ·ing, strains. To pull, draw, or stretch tight. To stretch or exert one's muscles or nerves to the utmost. To injure or impair by overuse or overexertion; wrench. To filter, trickle, percolate, or ooze. To pass a liquid through a filtering agent such as a strainer. To draw off or remove by filtration. n.