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author | Marius Bakke <mbakke@fastmail.com> | 2017-10-26 22:58:28 +0200 |
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committer | Marius Bakke <mbakke@fastmail.com> | 2017-10-27 00:50:09 +0200 |
commit | 4119376d66f2016dd60e5da6b36d90894b6a74f4 (patch) | |
tree | c73fcc6714130eb51fb03feb314433673609ca1e /gnu/packages/patches/exiv2-CVE-2017-14860.patch | |
parent | ba2cd6c2d8f40bc4d3fb91dd4c6ea05b8a586dec (diff) | |
download | guix-4119376d66f2016dd60e5da6b36d90894b6a74f4.tar.gz |
gnu: exiv2: Add upstream security fixes.
Fixes CVE-2017-14859, CVE-2017-14860, CVE-2017-14862 and CVE-2017-14864. * gnu/packages/patches/exiv2-CVE-2017-14859-14862-14864.patch, gnu/packages/patches/exiv2-CVE-2017-14860.patch: New files. * gnu/local.mk (dist_patch_DATA): Register them. * gnu/packages/image.scm (exiv2)[source]: Use them.
Diffstat (limited to 'gnu/packages/patches/exiv2-CVE-2017-14860.patch')
-rw-r--r-- | gnu/packages/patches/exiv2-CVE-2017-14860.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gnu/packages/patches/exiv2-CVE-2017-14860.patch b/gnu/packages/patches/exiv2-CVE-2017-14860.patch new file mode 100644 index 0000000000..43e6076b71 --- /dev/null +++ b/gnu/packages/patches/exiv2-CVE-2017-14860.patch @@ -0,0 +1,48 @@ +Fix CVE-2017-14860. + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14860 +https://nvd.nist.gov/vuln/detail/CVE-2017-14860 + +Copied from upstream: + +https://github.com/Exiv2/exiv2/commit/ff18fec24b119579df26fd2ebb8bb012cde102ce + +From ff18fec24b119579df26fd2ebb8bb012cde102ce Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Dan=20=C4=8Cerm=C3=A1k?= <dan.cermak@cgc-instruments.com> +Date: Fri, 6 Oct 2017 23:09:08 +0200 +Subject: [PATCH] Fix for CVE-2017-14860 + +A heap buffer overflow could occur in memcpy when icc.size_ is larger +than data.size_ - pad, as then memcpy would read out of bounds of data. + +This commit adds a sanity check to iccLength (= icc.size_): if it is +larger than data.size_ - pad (i.e. an overflow would be caused) an +exception is thrown. + +This fixes #71. +--- + src/jp2image.cpp | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +diff --git a/src/jp2image.cpp b/src/jp2image.cpp +index 747145cf..748d39b5 100644 +--- a/src/jp2image.cpp ++++ b/src/jp2image.cpp +@@ -269,10 +269,15 @@ namespace Exiv2 + std::cout << "Exiv2::Jp2Image::readMetadata: " + << "Color data found" << std::endl; + #endif +- long pad = 3 ; // 3 padding bytes 2 0 0 ++ const long pad = 3 ; // 3 padding bytes 2 0 0 + DataBuf data(subBox.length+8); + io_->read(data.pData_,data.size_); +- long iccLength = getULong(data.pData_+pad, bigEndian); ++ const long iccLength = getULong(data.pData_+pad, bigEndian); ++ // subtracting pad from data.size_ is safe: ++ // size_ is at least 8 and pad = 3 ++ if (iccLength > data.size_ - pad) { ++ throw Error(58); ++ } + DataBuf icc(iccLength); + ::memcpy(icc.pData_,data.pData_+pad,icc.size_); + #ifdef DEBUG |