Advisory CA-2002-07 Double Free Bug in zlib Compression Library

CERT Advisory CA-2002-07 Double Free Bug in zlib Compression Library Original release date: March 12, 2002 Last revised: -- Source: CERT/CC A complete revision history can be found at the end of this file. Systems Affected Any software that is linked to zlib 1.1.3 or earlier may be affected Data...

security problem fixed in zlib 1.1.4

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Zlib Advisory 2002-03-11 zlib Compression Library Corrupts malloc Data Structures via Double Free Original release date: March 11, 2002 Last revised: March 11, 2002 Source: This advisory is based on a CERT advisory written by Jeffrey P. Lanza. See...

[SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

Package : zlib, various Vulnerability : malloc error double free Problem-Type : potential remote root Debian-specific: no The compression library zlib has a flaw in which it attempts to free memory more than once under certain conditions. This can possibly be exploited to run arbitrary code in a...

Moderate: Red Hat Security Advisory: : : : Vulnerability in zlib library

Update 20 Mar 2002: Added kernel packages for Red Hat Linux 6.2 on sparc64. Updated VNC packages as the previous fix caused another denial of service vulnerability; thanks to Const Kaplinsky for reporting this Update 14 Mar 2002: Updated kernel packages for Red Hat Linux 6.2 and 7.0 which were...

cvs recompiled against updated zlib + /tmp fix

New cvs packages are available to fix security problems. Here's the information from the Slackware 8.0 ChangeLog: ---------------------------- Mon Mar 11 17:54:12 PST 2002 patches/packages/cvs.tgz: Patched to link to the shared zlib on the system instead of statically linking to the included zlib...

zlib: Double free in inflateEnd

The decompression algorithm in zlib 1.1.3 and earlier, as used in many different utilities and packages, causes inflateEnd to release certain memory more than once a "double free", which may allow local and remote attackers to execute arbitrary code via a block of malformed compression data...

Moderate: Red Hat Security Advisory: : Vulnerability in zlib library (powertools)

Update 20 Mar 2002: VNC packages updated to fix another denial of service vulnerability caused by the previous update. Thanks to Const Kaplinsky for discovering this issue. The zlib compression library provides in-memory compression and decompression functions. It is widely used throughout Linux...

rsync update fixes security problems

New rsync packages are available to fix security problems. Here's the information from the Slackware 8.0 ChangeLog: ---------------------------- Mon Mar 11 15:09:26 PST 2002 patches/packages/rsync.tgz: Upgraded to rsync-2.5.3. This fixes two security problems: Make sure that supplementary groups...

zlib upgrade fixes vulnerability

New zlib packages are available to fix a security problem which may impact programs that link with zlib. Here's the information from the Slackware 8.0 ChangeLog: ---------------------------- Mon Mar 11 13:32:40 PST 2002 patches/packages/zlib.tgz: Upgraded to zlib-1.1.4. This fixes a security...

Double Free Bug in zlib Compression Library Corrupts malloc's Internal Data Structures

Overview There is a bug in the zlib compression library that may manifest itself as a vulnerability in programs that are linked with zlib. This may allow an attacker to conduct a denial-of-service attack, gather information, or execute arbitrary code. It is important to note that the CERT/CC has...