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| -rw-r--r-- | NEWS | 121 |
1 files changed, 121 insertions, 0 deletions
@@ -99,6 +99,127 @@ XZ Utils Release Notes (FreeBSD >= 10). +5.2.6 (2022-08-12) + + * xz: + + - The --keep option now accepts symlinks, hardlinks, and + setuid, setgid, and sticky files. Previously this required + using --force. + + - When copying metadata from the source file to the destination + file, don't try to set the group (GID) if it is already set + correctly. This avoids a failure on OpenBSD (and possibly on + a few other OSes) where files may get created so that their + group doesn't belong to the user, and fchown(2) can fail even + if it needs to do nothing. + + - Cap --memlimit-compress to 2000 MiB instead of 4020 MiB on + MIPS32 because on MIPS32 userspace processes are limited + to 2 GiB of address space. + + * liblzma: + + - Fixed a missing error-check in the threaded encoder. If a + small memory allocation fails, a .xz file with an invalid + Index field would be created. Decompressing such a file would + produce the correct output but result in an error at the end. + Thus this is a "mild" data corruption bug. Note that while + a failed memory allocation can trigger the bug, it cannot + cause invalid memory access. + + - The decoder for .lzma files now supports files that have + uncompressed size stored in the header and still use the + end of payload marker (end of stream marker) at the end + of the LZMA stream. Such files are rare but, according to + the documentation in LZMA SDK, they are valid. + doc/lzma-file-format.txt was updated too. + + - Improved 32-bit x86 assembly files: + * Support Intel Control-flow Enforcement Technology (CET) + * Use non-executable stack on FreeBSD. + + - Visual Studio: Use non-standard _MSVC_LANG to detect C++ + standard version in the lzma.h API header. It's used to + detect when "noexcept" can be used. + + * xzgrep: + + - Fixed arbitrary command injection via a malicious filename + (CVE-2022-1271, ZDI-CAN-16587). A standalone patch for + this was released to the public on 2022-04-07. A slight + robustness improvement has been made since then and, if + using GNU or *BSD grep, a new faster method is now used + that doesn't use the old sed-based construct at all. This + also fixes bad output with GNU grep >= 3.5 (2020-09-27) + when xzgrepping binary files. + + This vulnerability was discovered by: + cleemy desu wayo working with Trend Micro Zero Day Initiative + + - Fixed detection of corrupt .bz2 files. + + - Improved error handling to fix exit status in some situations + and to fix handling of signals: in some situations a signal + didn't make xzgrep exit when it clearly should have. It's + possible that the signal handling still isn't quite perfect + but hopefully it's good enough. + + - Documented exit statuses on the man page. + + - xzegrep and xzfgrep now use "grep -E" and "grep -F" instead + of the deprecated egrep and fgrep commands. + + - Fixed parsing of the options -E, -F, -G, -P, and -X. The + problem occurred when multiple options were specied in + a single argument, for example, + + echo foo | xzgrep -Fe foo + + treated foo as a filename because -Fe wasn't correctly + split into -F -e. + + - Added zstd support. + + * xzdiff/xzcmp: + + - Fixed wrong exit status. Exit status could be 2 when the + correct value is 1. + + - Documented on the man page that exit status of 2 is used + for decompression errors. + + - Added zstd support. + + * xzless: + + - Fix less(1) version detection. It failed if the version number + from "less -V" contained a dot. + + * Translations: + + - Added new translations: Catalan, Croatian, Esperanto, + Korean, Portuguese, Romanian, Serbian, Spanish, Swedish, + and Ukrainian + + - Updated the Brazilian Portuguese translation. + + - Added French man page translation. This and the existing + German translation aren't complete anymore because the + English man pages got a few updates and the translators + weren't reached so that they could update their work. + + * Build systems: + + - Windows: Fix building of resource files when config.h isn't + used. CMake + Visual Studio can now build liblzma.dll. + + - Various fixes to the CMake support. Building static or shared + liblzma should work fine in most cases. In contrast, building + the command line tools with CMake is still clearly incomplete + and experimental and should be used for testing only. + + 5.2.5 (2020-03-17) * liblzma: |