Update Info


Security update for zstd

Type: security
Severity: moderate
Issued: 2019-08-24
This update for zstd fixes the following issues:

- Update to version 1.4.2:
  * bug: Fix bug in zstd-0.5 decoder by @terrelln (#1696)
  * bug: Fix seekable decompression in-memory API by @iburinoc (#1695)
  * bug: Close minor memory leak in CLI by @LeeYoung624 (#1701)
  * misc: Validate blocks are smaller than size limit by @vivekmig (#1685)
  * misc: Restructure source files by @ephiepark (#1679)

- Update to version 1.4.1:
  * bug: Fix data corruption in niche use cases by @terrelln (#1659)
  * bug: Fuzz legacy modes, fix uncovered bugs by @terrelln (#1593, #1594, #1595)
  * bug: Fix out of bounds read by @terrelln (#1590)
  * perf: Improve decode speed by ~7% @mgrice (#1668)
  * perf: Slightly improved compression ratio of level 3 and 4 (ZSTD_dfast) by @cyan4973 (#1681)
  * perf: Slightly faster compression speed when re-using a context by @cyan4973 (#1658)
  * perf: Improve compression ratio for small windowLog by @cyan4973 (#1624)
  * perf: Faster compression speed in high compression mode for repetitive data by @terrelln (#1635)
  * api: Add parameter to generate smaller dictionaries by @tyler-tran (#1656)
  * cli: Recognize symlinks when built in C99 mode by @felixhandte (#1640)
  * cli: Expose cpu load indicator for each file on -vv mode by @ephiepark (#1631)
  * cli: Restrict read permissions on destination files by @chungy (#1644)
  * cli: zstdgrep: handle -f flag by @felixhandte (#1618)
  * cli: zstdcat: follow symlinks by @vejnar (#1604)
  * doc: Remove extra size limit on compressed blocks by @felixhandte (#1689)
  * doc: Fix typo by @yk-tanigawa (#1633)
  * doc: Improve documentation on streaming buffer sizes by @cyan4973 (#1629)
  * build: CMake: support building with LZ4 @leeyoung624 (#1626)
  * build: CMake: install zstdless and zstdgrep by @leeyoung624 (#1647)
  * build: CMake: respect existing uninstall target by @j301scott (#1619)
  * build: Make: skip multithread tests when built without support by @michaelforney (#1620)
  * build: Make: Fix examples/ test target by @sjnam (#1603)
  * build: Meson: rename options out of deprecated namespace by @lzutao (#1665)
  * build: Meson: fix build by @lzutao (#1602)
  * build: Visual Studio: don't export symbols in static lib by @scharan (#1650)
  * build: Visual Studio: fix linking by @absotively (#1639)
  * build: Fix MinGW-W64 build by @myzhang1029 (#1600)
  * misc: Expand decodecorpus coverage by @ephiepark (#1664)

- Add baselibs.conf: libarchive gained zstd support and provides
  -32bit libraries. This means, zstd also needs to provide -32bit

- Update to new upstream release 1.4.0
  * perf: level 1 compression speed was improved
  * cli: added --[no-]compress-literals flag to enable or disable
    literal compression
- Reword "real-time" in description by some actual statistics,
  because 603MB/s (lowest zstd level) is not "real-time" for
  quite some applications.

- zstd 1.3.8:
  * better decompression speed on large files (+7%) and cold
    dictionaries (+15%)
  * slightly better compression ratio at high compression modes
  * new --rsyncable mode
  * support decompression of empty frames into NULL (used to be an
  * support ZSTD_CLEVEL environment variable
  * --no-progress flag, preserving final summary
  * various CLI fixes
  * fix race condition in one-pass compression functions that could
    allow out of bounds write (CVE-2019-11922, boo#1142941)

- zstd 1.3.7:
  * fix ratio for dictionary compression at levels 9 and 10
  * add man pages for zstdless and zstdgrep
- includes changes from zstd 1.3.6:
  * faster dictionary builder, also the new default for --train
  * previous (slower, slightly higher quality) dictionary builder
    to be selected via --train-cover
  * Faster dictionary decompression and compression under memory
    limits with many dictionaries used simultaneously
  * New command --adapt for compressed network piping of data
    adjusted to the perceived network conditions

- update to 1.3.5:
  * much faster dictionary compression
  * small quality improvement for dictionary generation
  * slightly improved performance at high compression levels
  * automatic memory release for long duration contexts
  * fix overlapLog can be manually set
  * fix decoding invalid lz4 frames
  * fix performance degradation for dictionary compression when
    using advanced API

- fix pzstd tests
- enable pzstd (parallel zstd)

- Use %license instead of %doc [boo#1082318]
- Add disk _constraints to fix ppc64le build
- Use FAT LTO objects in order to provide proper static library (boo#1133297).

This update was imported from the openSUSE:Leap:15.0:Update update project.



  • zstd-1.4.2-bp151.4.3.1