LZHAM vs ZLib

LZHAM

Lossless data compression codec with LZMA-like ratios but 1.5x-8x faster decompression speed, C/C++ (by richgel999)

Compression

Source Code

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ZLib

A massively spiffy yet delicately unobtrusive compression library. (by madler)

Compression

Source Code

zlib.net

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LZHAM		ZLib
	Project
-	Mentions	49
679	Stars	5,278
-	Growth	-
0.0	Activity	8.9
over 1 year ago	Latest Commit	11 days ago
C++	Language	C
GNU General Public License v3.0 or later	License	GNU General Public License v3.0 or later

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

LZHAM

Posts with mentions or reviews of LZHAM. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning LZHAM yet.
Tracking mentions began in Dec 2020.

ZLib

Posts with mentions or reviews of ZLib. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-11-25.

Zlib 1.3.1 Out
1 project | news.ycombinator.com | 22 Jan 2024
Vulnerability found after scanning debian 12 bookworm VM
1 project | /r/debian | 7 Dec 2023

A fix has been checked into the upstream git repo: https://github.com/madler/zlib/pull/843 but a release has not yet been made including it.
ZLib VS jdeflate - a user suggested alternative
2 projects | 25 Nov 2023
CVE-2023-4863: Heap buffer overflow in WebP (Chrome)
18 projects | news.ycombinator.com | 12 Sep 2023

So the real issue here is that the lack of tree validation before the tree construction, I believe. I'm surprised that this check was not yet implemented (I actually checked libwebp to make sure that I was missing one). Given this blind spot, an automated test based on the domain knowledge is likely useless to catch this bug.
[1] https://github.com/madler/zlib/blob/master/examples/enough.c
Notes: Advanced Node.js Concepts by Stephen Grider
5 projects | dev.to | 19 Aug 2023

In the source code of the Node.js opensource project, lib folder contains JavaScript code, mostly wrappers over C++ and function definitions. On the contrary, src folder contains C++ implementations of the functions, which pulls dependencies from the V8 project, the libuv project, the zlib project, the llhttp project, and many more - which are all placed at the deps folder.
Zlib 1.3 · madler/zlib 09155ea
1 project | news.ycombinator.com | 19 Aug 2023
Zlib 1.3 – A Spiffy yet Delicately Unobtrusive Compression Library
1 project | news.ycombinator.com | 18 Aug 2023
Exploring the Internals of Linux v0.01
8 projects | news.ycombinator.com | 12 Aug 2023
Dear Pirates Donate as much as you can
1 project | /r/Piracy | 21 Mar 2023

Seeing the text in red got me thinking for a moment, "wow, didn't realize pirates had such love for an open-source compression library"
Updated packages: do Arch devs update/build the original source as is or...
1 project | /r/archlinux | 24 Feb 2023

cd "${srcdir}/zlib-$pkgver/contrib/minizip" make install DESTDIR="${pkgdir}" install -D -m644 "${srcdir}/zlib-$pkgver/LICENSE" "${pkgdir}/usr/share/licenses/minizip/LICENSE" # https://github.com/madler/zlib/pull/229 rm "${pkgdir}/usr/include/minizip/crypt.h"