From 7dd3ed26ca09df0e582be8cc2780bba588bdd11e Mon Sep 17 00:00:00 2001 From: P Dheeraj Srujan Kumar Date: Fri, 2 Dec 2022 23:23:31 +0530 Subject: Update to internal 1-0.92 Signed-off-by: P Dheeraj Srujan Kumar --- .../expat/expat/CVE-2022-40674_1.patch | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 meta-openbmc-mods/meta-common/recipes-core/expat/expat/CVE-2022-40674_1.patch (limited to 'meta-openbmc-mods/meta-common/recipes-core/expat/expat/CVE-2022-40674_1.patch') diff --git a/meta-openbmc-mods/meta-common/recipes-core/expat/expat/CVE-2022-40674_1.patch b/meta-openbmc-mods/meta-common/recipes-core/expat/expat/CVE-2022-40674_1.patch new file mode 100644 index 000000000..80ddcb4f2 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-core/expat/expat/CVE-2022-40674_1.patch @@ -0,0 +1,49 @@ +From 4a32da87e931ba54393d465bb77c40b5c33d343b Mon Sep 17 00:00:00 2001 +From: Rhodri James +Date: Wed, 17 Aug 2022 18:26:18 +0100 +Subject: [PATCH] Ensure raw tagnames are safe exiting internalEntityParser + +It is possible to concoct a situation in which parsing is +suspended while substituting in an internal entity, so that +XML_ResumeParser directly uses internalEntityProcessor as +its processor. If the subsequent parse includes some unclosed +tags, this will return without calling storeRawNames to ensure +that the raw versions of the tag names are stored in memory other +than the parse buffer itself. If the parse buffer is then changed +or reallocated (for example if processing a file line by line), +badness will ensue. + +This patch ensures storeRawNames is always called when needed +after calling doContent. The earlier call do doContent does +not need the same protection; it only deals with entity +substitution, which cannot leave unbalanced tags, and in any +case the raw names will be pointing into the stored entity +value not the parse buffer. +--- + lib/xmlparse.c | 13 +++++++++---- + 1 file changed, 9 insertions(+), 4 deletions(-) + +diff --git a/lib/xmlparse.c b/lib/xmlparse.c +index 7bcabf7f4..d73f419cf 100644 +--- a/lib/xmlparse.c ++++ b/lib/xmlparse.c +@@ -5826,10 +5826,15 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end, + { + parser->m_processor = contentProcessor; + /* see externalEntityContentProcessor vs contentProcessor */ +- return doContent(parser, parser->m_parentParser ? 1 : 0, parser->m_encoding, +- s, end, nextPtr, +- (XML_Bool)! parser->m_parsingStatus.finalBuffer, +- XML_ACCOUNT_DIRECT); ++ result = doContent(parser, parser->m_parentParser ? 1 : 0, ++ parser->m_encoding, s, end, nextPtr, ++ (XML_Bool)! parser->m_parsingStatus.finalBuffer, ++ XML_ACCOUNT_DIRECT); ++ if (result == XML_ERROR_NONE) { ++ if (! storeRawNames(parser)) ++ return XML_ERROR_NO_MEMORY; ++ } ++ return result; + } + } + -- cgit v1.2.3