Sign Up
Log In
Log In
or
Sign Up
Places
All Projects
Status Monitor
Collapse sidebar
openSUSE:Leap:15.2
libb64
integer-overflows.diff
Overview
Repositories
Revisions
Requests
Users
Attributes
Meta
File integer-overflows.diff of Package libb64
Description: fix integer overflows Author: Jakub Wilk <jwilk@debian.org> Bug: http://sourceforge.net/tracker/?func=detail&aid=3591129&group_id=152942&atid=785907 Last-Update: 2012-11-30 Index: libb64-1.2.1/src/cdecode.c =================================================================== --- libb64-1.2.1.orig/src/cdecode.c +++ libb64-1.2.1/src/cdecode.c @@ -9,10 +9,11 @@ For details, see http://sourceforge.net/ int base64_decode_value(char value_in) { - static const char decoding[] = {62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-2,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51}; + static const signed char decoding[] = {62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-2,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51}; static const char decoding_size = sizeof(decoding); + if (value_in < 43) return -1; value_in -= 43; - if (value_in < 0 || value_in >= decoding_size) return -1; + if (value_in > decoding_size) return -1; return decoding[(int)value_in]; } @@ -26,7 +27,7 @@ int base64_decode_block(const char* code { const char* codechar = code_in; char* plainchar = plaintext_out; - char fragment; + int fragment; *plainchar = state_in->plainchar; @@ -42,7 +43,7 @@ int base64_decode_block(const char* code state_in->plainchar = *plainchar; return plainchar - plaintext_out; } - fragment = (char)base64_decode_value(*codechar++); + fragment = base64_decode_value(*codechar++); } while (fragment < 0); *plainchar = (fragment & 0x03f) << 2; case step_b: @@ -53,7 +54,7 @@ int base64_decode_block(const char* code state_in->plainchar = *plainchar; return plainchar - plaintext_out; } - fragment = (char)base64_decode_value(*codechar++); + fragment = base64_decode_value(*codechar++); } while (fragment < 0); *plainchar++ |= (fragment & 0x030) >> 4; *plainchar = (fragment & 0x00f) << 4; @@ -65,7 +66,7 @@ int base64_decode_block(const char* code state_in->plainchar = *plainchar; return plainchar - plaintext_out; } - fragment = (char)base64_decode_value(*codechar++); + fragment = base64_decode_value(*codechar++); } while (fragment < 0); *plainchar++ |= (fragment & 0x03c) >> 2; *plainchar = (fragment & 0x003) << 6; @@ -77,7 +78,7 @@ int base64_decode_block(const char* code state_in->plainchar = *plainchar; return plainchar - plaintext_out; } - fragment = (char)base64_decode_value(*codechar++); + fragment = base64_decode_value(*codechar++); } while (fragment < 0); *plainchar++ |= (fragment & 0x03f); }
Locations
Projects
Search
Status Monitor
Help
OpenBuildService.org
Documentation
API Documentation
Code of Conduct
Contact
Support
@OBShq
Terms
openSUSE Build Service is sponsored by
The Open Build Service is an
openSUSE project
.
Sign Up
Log In
Places
Places
All Projects
Status Monitor