SQLite

Check-in [aab790a16e]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Increase the size of loop variables in the printf() implementation to avoid integer overflow on multi-gigabyte string arguments. CVE-2022-35737.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: aab790a16e1bdff78759f9c9ae87a2559ba82dd34ef3dedfb66035a0db7067a7
User & Date: drh 2022-07-18 15:02:01.000
Original Comment: Increase the size of loop variables in the printf() implementation to avoid harmless compiler warnings.
Context
2022-07-18
18:13
Add the "testrunner" makefile target. (check-in: 954c659315 user: drh tags: trunk)
15:27
Increase the size of loop variables in the printf() implementation to avoid integer overflow on multi-gigabyte string arguments. CVE-2022-35737. (check-in: 26db4fc22f user: drh tags: branch-3.39)
15:02
Increase the size of loop variables in the printf() implementation to avoid integer overflow on multi-gigabyte string arguments. CVE-2022-35737. (check-in: aab790a16e user: drh tags: trunk)
13:55
Enhance the REGEXP extension so that it will accept the start-of-input mark ("^") in the middle of parentheses. Forum post 0d6a9160f81ef1a8. (check-in: ed8a8ebd62 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/printf.c.
︙︙
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814

          int ii = length - 1;
          while( ii>=0 ) if( (bufpt[ii--] & 0xc0)==0x80 ) width++;
        }
        break;
      case etSQLESCAPE:           /* %q: Escape ' characters */
      case etSQLESCAPE2:          /* %Q: Escape ' and enclose in '...' */
      case etSQLESCAPE3: {        /* %w: Escape " characters */
        int i, j, k, n, isnull;
        int needQuote;
        char ch;
        char q = ((xtype==etSQLESCAPE3)?'"':'\'');   /* Quote character */
        char *escarg;

        if( bArgList ){
          escarg = getTextArg(pArgList);
        }else{








|
|








799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814

          int ii = length - 1;
          while( ii>=0 ) if( (bufpt[ii--] & 0xc0)==0x80 ) width++;
        }
        break;
      case etSQLESCAPE:           /* %q: Escape ' characters */
      case etSQLESCAPE2:          /* %Q: Escape ' and enclose in '...' */
      case etSQLESCAPE3: {        /* %w: Escape " characters */
        i64 i, j, k, n;
        int needQuote, isnull;
        char ch;
        char q = ((xtype==etSQLESCAPE3)?'"':'\'');   /* Quote character */
        char *escarg;

        if( bArgList ){
          escarg = getTextArg(pArgList);
        }else{
︙︙