Commit Graph

14 Commits (bd960e9d05d917cb29a4d6609f21f4e9c2d2cce7)

Author SHA1 Message Date
Tobias Stoeckmann 9e16d2709c libpkgconf: personality: fix out of boundary access
It is possible to set the instruction pointer to undefined values by
using an operator larger than ':' in ASCII.

Since the personality function array does not have 256 entries, an
invalid operator can overflow the array.

Proof of concept:

$ echo "a _ b" > poc
$ ln -s $(which pkgconf) poc-pkgconf
$ ./poc-pkgconf
2020-05-25 05:55:39 -06:00
Ariadne Conill 48dc665ae3 personality: add support for WantDefaultStatic setting 2019-10-19 00:56:17 -05:00
Ariadne Conill 2adafc2729 libpkgconf: personality: return the default personality if loading a personality file failed 2019-08-23 12:48:11 -05:00
Alexander Tsoy db9c1e96a1
fix the order of header includes
config.h should be included before stdinc.h, otherwise large file
support is not enabled.

Downstream bug: https://bugs.gentoo.org/687548
2019-06-08 04:55:52 +03:00
William Pitcock 43ca536b9f lite: disable some bloat 2019-05-06 15:13:17 -05:00
Ignacio Casal Quinteiro c9dffb8570 Fix build on windows with meson 2018-09-17 15:41:27 +02:00
Graham Ollis 273d1d0461 use pkgconf_strlcpy
On Debian/Ubuntu I get:

  CC       libpkgconf/personality.lo
  libpkgconf/personality.c: In function ‘load_personality_with_path’:
  libpkgconf/personality.c:195:3: warning: implicit declaration of function ‘strlcpy’ [-Wimplicit-function-declaration]
  strlcpy(pathbuf, path, sizeof pathbuf);
        ^~~~~~~
  CC       libpkgconf/parser.lo
  CCLD     libpkgconf.la
  ar: `u' modifier ignored since `D' is the default (see `U')
  CC       cli/pkgconf-main.o
  CC       cli/pkgconf-getopt_long.o
  CC       cli/pkgconf-renderer-msvc.o
  CCLD     pkgconf
  ./.libs/libpkgconf.so: undefined reference to `strlcpy'
2018-06-14 14:46:34 -05:00
William Pitcock 3ccc4454d1 libpkgconf: personality: ensure the path list is properly initialized before searching for triplets 2018-05-10 13:36:22 -05:00
William Pitcock 40897f246b libpkgconf: personality: remove const from the default personality, since it's not really const 2018-05-09 22:52:27 -05:00
William Pitcock e6ce6c8edd libpkgconf: personality: fixups 2018-05-09 22:39:39 -05:00
William Pitcock 751348298b libpkgconf: personality: fill in the rest of the personality parser 2018-05-09 22:08:28 -05:00
William Pitcock 9439b683ca libpkgconf: personality: add stub cross personality loader 2018-05-09 19:27:53 -05:00
William Pitcock 6b0e346c28 libpkgconf: refactor building the dir lists into separate concerns 2018-05-09 17:07:26 -05:00
William Pitcock 854490c5b9 libpkgconf: add basic support for cross-compile personality objects 2018-05-09 16:54:21 -05:00