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From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] libarchive (SSA:2026-070-01)
Date: Wed, 11 Mar 2026 22:03:36 -0700 (PDT)
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Hash: SHA1

[slackware-security]  libarchive (SSA:2026-070-01)

New libarchive packages are available for Slackware 15.0 and -current to
fix security issues.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/libarchive-3.8.6-i586-1_slack15.0.txz:  Upgraded.
  This update fixes bugs and security issues:
  libarchive: fix incompatibility with Nettle 4.x (#2858)
  libarchive: fix NULL pointer dereference in
  archive_acl_from_text_w() (#2859)
  bsdunzip: fix ISO week year and Gregorian year confusion (#2860)
  7zip: ix SEGV in check_7zip_header_in_sfx via ELF offset validation (#2864)
  7zip: fix out-of-bounds access on ELF 64-bit header (#2875)
  RAR5 reader: fix infinite loop in rar5 decompression (#2877)
  RAR5 reader: fix potential memory leak (#2892)
  RAR5: fix SIGSEGV when archive_read_support_format_rar5 is called
  twice (#2893)
  CAB reader: fix memory leak on repeated calls to
  archive_read_support_format_cab (#2895)
  mtree reader: Fix file descriptor leak in mtree parser
  cleanup (CWE-775, #2878)
  various small bugfixes in code and documentation
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project!  :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/libarchive-3.8.6-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/libarchive-3.8.6-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libarchive-3.8.6-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libarchive-3.8.6-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 15.0 package:
1469605a8cec4e66d7a16926ca13aec6  libarchive-3.8.6-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
3d55f09d648863928671f010a3fe4628  libarchive-3.8.6-x86_64-1_slack15.0.txz

Slackware -current package:
3ef64b383d3f537142d73d2bce6d784b  l/libarchive-3.8.6-i686-1.txz

Slackware x86_64 -current package:
fafea232f0960e2aa345e5e3cf3ae152  l/libarchive-3.8.6-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg libarchive-3.8.6-i586-1_slack15.0.txz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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