diff options
Diffstat (limited to 'patches/source/libjpeg/jpeg.CVE-2013-6629.diff')
| -rw-r--r-- | patches/source/libjpeg/jpeg.CVE-2013-6629.diff | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/patches/source/libjpeg/jpeg.CVE-2013-6629.diff b/patches/source/libjpeg/jpeg.CVE-2013-6629.diff new file mode 100644 index 000000000..37c267a1d --- /dev/null +++ b/patches/source/libjpeg/jpeg.CVE-2013-6629.diff @@ -0,0 +1,32 @@ +From f457207b57d0e234cf7a174d20a7db424b82173d Mon Sep 17 00:00:00 2001 +From: mancha <mancha1@hush.com> +Date: Fri, 22 Nov 2013 +Subject: CVE-2013-6629 + +get_sos() in jdmarker.c does not check for duplication of component data +while reading segments following Start Of Scan (SOS) JPEG markers. This +allows remote attackers to obtain sensitive information from uninitialized +memory locations via crafted JPEG images. + +Adapted from: +https://codereview.chromium.org/download/issue31603002_1.diff + +--- + jdmarker.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/jdmarker.c ++++ b/jdmarker.c +@@ -347,6 +347,12 @@ get_sos (j_decompress_ptr cinfo) + + TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc, + compptr->dc_tbl_no, compptr->ac_tbl_no); ++ ++ /* This CSi (cc) should differ from the previous CSi */ ++ for (ci = 0; ci < i; ci++) { ++ if (cinfo->cur_comp_info[ci] == compptr) ++ ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc); ++ } + } + + /* Collect the additional scan parameters Ss, Se, Ah/Al. */ |