diff options
Diffstat (limited to 'source/l/libtiff/libtiff-CVE-2011-0192.patch')
| -rw-r--r-- | source/l/libtiff/libtiff-CVE-2011-0192.patch | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/source/l/libtiff/libtiff-CVE-2011-0192.patch b/source/l/libtiff/libtiff-CVE-2011-0192.patch deleted file mode 100644 index 892f70e0..00000000 --- a/source/l/libtiff/libtiff-CVE-2011-0192.patch +++ /dev/null @@ -1,27 +0,0 @@ -Protect against a fax VL(n) codeword commanding a move left. Without -this, a malicious input file can generate an indefinitely large series -of runs without a0 ever reaching the right margin, thus overrunning -our buffer of run lengths. Per CVE-2011-0192. This is a modified -version of a patch proposed by Drew Yao of Apple Product Security. -It adds an unexpected() report, and disallows the equality case except -for the first run of a line, since emitting a run without increasing a0 -still allows buffer overrun. (We have to allow it for the first run to -cover the case of encoding a zero-length run at start of line using VL.) - - -diff -Naur tiff-3.9.4.orig/libtiff/tif_fax3.h tiff-3.9.4/libtiff/tif_fax3.h ---- tiff-3.9.4.orig/libtiff/tif_fax3.h 2010-06-08 14:50:42.000000000 -0400 -+++ tiff-3.9.4/libtiff/tif_fax3.h 2011-03-10 12:11:20.850839162 -0500 -@@ -478,6 +478,12 @@ - break; \ - case S_VL: \ - CHECK_b1; \ -+ if (b1 <= (int) (a0 + TabEnt->Param)) { \ -+ if (b1 < (int) (a0 + TabEnt->Param) || pa != thisrun) { \ -+ unexpected("VL", a0); \ -+ goto eol2d; \ -+ } \ -+ } \ - SETVALUE(b1 - a0 - TabEnt->Param); \ - b1 -= *--pb; \ - break; \ |