diff options
author | wangmy <wangmy@fujitsu.com> | 2021-05-18 16:03:29 +0800 |
---|---|---|
committer | Khem Raj <raj.khem@gmail.com> | 2021-05-19 09:17:49 -0700 |
commit | f0d83c14d9064ce1ee19b92d95c8daf790fe7488 (patch) | |
tree | 392ef3626e9e7a6f21ef5c17273ea5dd2625dffe /meta-oe/recipes-support/exiv2/exiv2 | |
parent | 5be72693096cef671bf54bf1dd6ee8125614d064 (diff) | |
download | meta-openembedded-f0d83c14d9064ce1ee19b92d95c8daf790fe7488.tar.gz |
exiv2: Fix CVE-2021-29458
References
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29458
The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file.
An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2,
if they can trick the victim into running Exiv2 on a crafted image file.
Upstream-Status: Accepted [https://github.com/Exiv2/exiv2/pull/1536/commits/06d2db6e5fd2fcca9c060e95fc97f8a5b5d4c22d]
CVE: CVE-2021-29458
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Diffstat (limited to 'meta-oe/recipes-support/exiv2/exiv2')
-rw-r--r-- | meta-oe/recipes-support/exiv2/exiv2/CVE-2021-29458.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/meta-oe/recipes-support/exiv2/exiv2/CVE-2021-29458.patch b/meta-oe/recipes-support/exiv2/exiv2/CVE-2021-29458.patch new file mode 100644 index 0000000000..285f6fe4ce --- /dev/null +++ b/meta-oe/recipes-support/exiv2/exiv2/CVE-2021-29458.patch @@ -0,0 +1,37 @@ +From 9b7a19f957af53304655ed1efe32253a1b11a8d0 Mon Sep 17 00:00:00 2001 +From: Kevin Backhouse <kevinbackhouse@github.com> +Date: Fri, 9 Apr 2021 13:37:48 +0100 +Subject: [PATCH] Fix integer overflow. +--- + src/crwimage_int.cpp | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +diff --git a/src/crwimage_int.cpp b/src/crwimage_int.cpp +index aefaf22..2e3e507 100644 +--- a/src/crwimage_int.cpp ++++ b/src/crwimage_int.cpp +@@ -559,7 +559,7 @@ namespace Exiv2 { + void CiffComponent::setValue(DataBuf buf) + { + if (isAllocated_) { +- delete pData_; ++ delete[] pData_; + pData_ = 0; + size_ = 0; + } +@@ -1167,7 +1167,11 @@ namespace Exiv2 { + pCrwMapping->crwDir_); + if (edX != edEnd || edY != edEnd || edO != edEnd) { + uint32_t size = 28; +- if (cc && cc->size() > size) size = cc->size(); ++ if (cc) { ++ if (cc->size() < size) ++ throw Error(kerCorruptedMetadata); ++ size = cc->size(); ++ } + DataBuf buf(size); + std::memset(buf.pData_, 0x0, buf.size_); + if (cc) std::memcpy(buf.pData_ + 8, cc->pData() + 8, cc->size() - 8); +-- +2.25.1 + |