Apparently the fix for CVE-2022-25313 caused a regression so expat-2.4.6 has been released with a fix. Please don't merge the below patch and I will issue a v2 version with 2.4.6 later today.

Thanks, Adolf.

On 19/02/2022 16:06, Adolf Belka wrote:

• Update from 2.4.4 to 2.4.5
• Update of rootfile
• Changelog Release 2.4.5 Fri February 18 2022 Security fixes: #562 CVE-2022-25235 -- Passing malformed 2- and 3-byte UTF-8 sequences (e.g. from start tag names) to the XML processing application on top of Expat can cause arbitrary damage (e.g. code execution) depending on how invalid UTF-8 is handled inside the XML processor; validation was not their job but Expat's. Exploits with code execution are known to exist. #561 CVE-2022-25236 -- Passing (one or more) namespace separator characters in "xmlns[:prefix]" attribute values made Expat send malformed tag names to the XML processor on top of Expat which can cause arbitrary damage (e.g. code execution) depending on such unexpectable cases are handled inside the XML processor; validation was not their job but Expat's. Exploits with code execution are known to exist. #558 CVE-2022-25313 -- Fix stack exhaustion in doctype parsing that could be triggered by e.g. a 2 megabytes file with a large number of opening braces. Expected impact is denial of service or potentially arbitrary code execution. #560 CVE-2022-25314 -- Fix integer overflow in function copyString; only affects the encoding name parameter at parser creation time which is often hardcoded (rather than user input), takes a value in the gigabytes to trigger, and a 64-bit machine. Expected impact is denial of service. #559 CVE-2022-25315 -- Fix integer overflow in function storeRawNames; needs input in the gigabytes and a 64-bit machine. Expected impact is denial of service or potentially arbitrary code execution. Other changes: #557 #564 Version info bumped from 9:4:8 to 9:5:8; see https://verbump.de/ for what these numbers do

Signed-off-by: Adolf Belka adolf.belka@ipfire.org

config/rootfiles/common/expat | 21 ++++++++++----------- lfs/expat | 7 ++++--- 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/config/rootfiles/common/expat b/config/rootfiles/common/expat index 47ce600ad..1ceffee67 100644 --- a/config/rootfiles/common/expat +++ b/config/rootfiles/common/expat @@ -2,21 +2,20 @@ #usr/include/expat.h #usr/include/expat_config.h #usr/include/expat_external.h -#usr/lib/cmake/expat-2.4.4 -#usr/lib/cmake/expat-2.4.4/expat-config-version.cmake -#usr/lib/cmake/expat-2.4.4/expat-config.cmake -#usr/lib/cmake/expat-2.4.4/expat-noconfig.cmake -#usr/lib/cmake/expat-2.4.4/expat.cmake -#usr/lib/libexpat.a +#usr/lib/cmake/expat-2.4.5 +#usr/lib/cmake/expat-2.4.5/expat-config-version.cmake +#usr/lib/cmake/expat-2.4.5/expat-config.cmake +#usr/lib/cmake/expat-2.4.5/expat-noconfig.cmake +#usr/lib/cmake/expat-2.4.5/expat.cmake #usr/lib/libexpat.la #usr/lib/libexpat.so usr/lib/libexpat.so.1 -usr/lib/libexpat.so.1.8.4 +usr/lib/libexpat.so.1.8.5 #usr/lib/pkgconfig/expat.pc #usr/share/doc/expat -#usr/share/doc/expat-2.4.4 -#usr/share/doc/expat-2.4.4/ok.min.css -#usr/share/doc/expat-2.4.4/reference.html -#usr/share/doc/expat-2.4.4/style.css +#usr/share/doc/expat-2.4.5 +#usr/share/doc/expat-2.4.5/ok.min.css +#usr/share/doc/expat-2.4.5/reference.html +#usr/share/doc/expat-2.4.5/style.css #usr/share/doc/expat/AUTHORS #usr/share/doc/expat/changelog diff --git a/lfs/expat b/lfs/expat index 3898889ad..e0b3040b5 100644 --- a/lfs/expat +++ b/lfs/expat @@ -24,7 +24,7 @@

include Config

-VER = 2.4.4 +VER = 2.4.5

THISAPP = expat-$(VER) DL_FILE = $(THISAPP).tar.bz2 @@ -40,7 +40,7 @@ objects = $(DL_FILE)

$(DL_FILE) = $(DL_FROM)/$(DL_FILE)

-$(DL_FILE)_MD5 = 99392ce3377777ab0dc8b0f14beda793 +$(DL_FILE)_MD5 = e5ad7a3aaaecff1e4e0cae81dceef182

install : $(TARGET)

@@ -72,7 +72,8 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) @rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar axf $(DIR_DL)/$(DL_FILE) $(UPDATE_AUTOMAKE) cd $(DIR_APP) && ./configure \

• --prefix=/usr
  

•               --prefix=/usr \
  

•               --disable-static
  

  cd $(DIR_APP) && make $(MAKETUNING) cd $(DIR_APP) && make install cd $(DIR_APP) && install -v -m755 -d /usr/share/doc/$(THISAPP)