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 Tim Critchley
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Profile of Tim Critchley

CEO at Semafone
Member Since: 8/20/2018
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News & Commentary Posts: 1
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Tim Critchley has been the CEO of Semafone since 2009 and has led the company from a UK startup to an international business that spans five continents. He has helped secure Series A and Series B rounds of funding from various investor groups, including the BGF and Octopus. Under his leadership, the company has secured global partnerships and won clients that span a range of industry sectors, including major brands such as AXA, BT, Capita, Harley Davidson, Next, Rogers Communications, Santander, and Sky. Prior to joining Semafone, Tim was COO at KnowledgePool Group, the UK's leading provider of managed learning services, where he helped complete a successful turnaround in three years. Tim graduated from the London School of Economics and has an MBA from Manchester Business School.

Articles by Tim Critchley
Why AI Will Create Far More Jobs Than It Replaces
John DiLullo, CEO, Lastline,  5/14/2019
97% of Americans Can't Ace a Basic Security Test
Steve Zurier, Contributing Writer,  5/20/2019
Baltimore Ransomware Attack Takes Strange Twist
Kelly Jackson Higgins, Executive Editor at Dark Reading,  5/14/2019
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CVE-2019-12216
PUBLISHED: 2019-05-20
An issue was discovered in libSDL2.a in Simple DirectMedia Layer (SDL) 2.0.9 when used in conjunction with libSDL2_image.a in SDL2_image 2.0.4. There is a heap-based buffer overflow in the SDL2_image function IMG_LoadPCX_RW at IMG_pcx.c.
CVE-2019-12217
PUBLISHED: 2019-05-20
An issue was discovered in libSDL2.a in Simple DirectMedia Layer (SDL) 2.0.9 when used in conjunction with libSDL2_image.a in SDL2_image 2.0.4. There is a NULL pointer dereference in the SDL stdio_read function in file/SDL_rwops.c.
CVE-2019-12218
PUBLISHED: 2019-05-20
An issue was discovered in libSDL2.a in Simple DirectMedia Layer (SDL) 2.0.9 when used in conjunction with libSDL2_image.a in SDL2_image 2.0.4. There is a NULL pointer dereference in the SDL2_image function IMG_LoadPCX_RW at IMG_pcx.c.
CVE-2019-12219
PUBLISHED: 2019-05-20
An issue was discovered in libSDL2.a in Simple DirectMedia Layer (SDL) 2.0.9 when used in conjunction with libSDL2_image.a in SDL2_image 2.0.4. There is an invalid free error in the SDL function SDL_SetError_REAL at SDL_error.c.
CVE-2019-12220
PUBLISHED: 2019-05-20
An issue was discovered in libSDL2.a in Simple DirectMedia Layer (SDL) 2.0.9 when used in conjunction with libSDL2_image.a in SDL2_image 2.0.4. There is an out-of-bounds read in the SDL function SDL_FreePalette_REAL at video/SDL_pixels.c.