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2310ee01
编写于
9月 03, 2022
作者:
S
Salvatore Bonaccorso
提交者:
Jeremy Bicha
9月 08, 2022
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电子邮件补丁
差异文件
JBIG2Stream: Fix crash on broken file (CVE-2022-38784)
Closes: #1018971
上级
50cd779c
变更
3
隐藏空白更改
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Showing
3 changed file
with
42 addition
and
0 deletion
+42
-0
debian/changelog
debian/changelog
+7
-0
debian/patches/JBIG2Stream-Fix-crash-on-broken-file.patch
debian/patches/JBIG2Stream-Fix-crash-on-broken-file.patch
+34
-0
debian/patches/series
debian/patches/series
+1
-0
未找到文件。
debian/changelog
浏览文件 @
2310ee01
poppler (22.08.0-2.1) unstable; urgency=medium
* Non-maintainer upload.
* JBIG2Stream: Fix crash on broken file (CVE-2022-38784) (Closes: #1018971)
-- Salvatore Bonaccorso <carnil@debian.org> Sat, 03 Sep 2022 21:30:51 +0200
poppler (22.08.0-2) unstable; urgency=medium
poppler (22.08.0-2) unstable; urgency=medium
* Team upload
* Team upload
...
...
debian/patches/JBIG2Stream-Fix-crash-on-broken-file.patch
0 → 100644
浏览文件 @
2310ee01
From: Albert Astals Cid <aacid@kde.org>
Date: Thu, 25 Aug 2022 00:14:22 +0200
Subject: JBIG2Stream: Fix crash on broken file
Origin: https://gitlab.freedesktop.org/poppler/poppler/-/commit/27354e9d9696ee2bc063910a6c9a6b27c5184a52
Bug-Debian: https://bugs.debian.org/1018971
Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2022-38784
https://github.com/jeffssh/CVE-2021-30860
Thanks to David Warren for the heads up
---
poppler/JBIG2Stream.cc | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/poppler/JBIG2Stream.cc b/poppler/JBIG2Stream.cc
index 662276e547eb..9f70431de49e 100644
--- a/poppler/JBIG2Stream.cc
+++ b/poppler/JBIG2Stream.cc
@@ -1976,7 +1976,11 @@
void JBIG2Stream::readTextRegionSeg(unsigned int segNum, bool imm, bool lossless
for (i = 0; i < nRefSegs; ++i) {
if ((seg = findSegment(refSegs[i]))) {
if (seg->getType() == jbig2SegSymbolDict) {
- numSyms += ((JBIG2SymbolDict *)seg)->getSize();
+ const unsigned int segSize = ((JBIG2SymbolDict *)seg)->getSize();
+ if (unlikely(checkedAdd(numSyms, segSize, &numSyms))) {
+ error(errSyntaxError, getPos(), "Too many symbols in JBIG2 text region");
+ return;
+ }
} else if (seg->getType() == jbig2SegCodeTable) {
codeTables.push_back(seg);
}
--
2.37.2
debian/patches/series
浏览文件 @
2310ee01
segfault-on-unset-catalog.patch
segfault-on-unset-catalog.patch
JBIG2Stream-Fix-crash-on-broken-file.patch
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