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Red Hat Security Advisory 2019-4356-01

Red Hat Security Advisory 2019-4356-01
Posted Dec 19, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-4356-01 - Git is a distributed revision control system with a decentralized architecture. As opposed to centralized version control systems with a client-server model, Git ensures that each working copy of a Git repository is an exact copy with complete revision history. This not only allows the user to work on and contribute to projects without the need to have permission to push the changes to their official repositories, but also makes it possible for the user to work with no network connection. Issues addressed include a code execution vulnerability.

tags | advisory, code execution
systems | linux, redhat
advisories | CVE-2019-1348, CVE-2019-1349, CVE-2019-1352, CVE-2019-1387
SHA-256 | 75b2c23f16e2c56c47dd13c644fc7c0898bd6dcca7a91807c78a3eb2563846dc

Red Hat Security Advisory 2019-4356-01

Change Mirror Download
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====================================================================
Red Hat Security Advisory

Synopsis: Important: git security update
Advisory ID: RHSA-2019:4356-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:4356
Issue date: 2019-12-19
CVE Names: CVE-2019-1348 CVE-2019-1349 CVE-2019-1352
CVE-2019-1387
====================================================================
1. Summary:

An update for git is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

Git is a distributed revision control system with a decentralized
architecture. As opposed to centralized version control systems with a
client-server model, Git ensures that each working copy of a Git repository
is an exact copy with complete revision history. This not only allows the
user to work on and contribute to projects without the need to have
permission to push the changes to their official repositories, but also
makes it possible for the user to work with no network connection.

The following packages have been upgraded to a later upstream version: git
(2.18.2). (BZ#1784058)

Security Fix(es):

* git: Remote code execution in recursive clones with nested submodules
(CVE-2019-1387)

* git: Arbitrary path overwriting via export-marks in-stream command
feature (CVE-2019-1348)

* git: Recursive submodule cloning allows using git directory twice with
synonymous directory name written in .git/ (CVE-2019-1349)

* git: Files inside the .git directory may be overwritten during cloning
via NTFS Alternate Data Streams (CVE-2019-1352)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1781127 - CVE-2019-1387 git: remote code execution in recursive clones with nested submodules
1781143 - CVE-2019-1349 git: recursive submodule cloning allows using git directory twice with synonymous directory name written in .git/
1781953 - CVE-2019-1348 git: arbitrary path overwriting via export-marks in-stream command feature
1781963 - CVE-2019-1352 git: files inside the .git directory may be overwritten during cloning via NTFS Alternate Data Streams

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
git-2.18.2-1.el8_1.src.rpm

aarch64:
git-2.18.2-1.el8_1.aarch64.rpm
git-core-2.18.2-1.el8_1.aarch64.rpm
git-core-debuginfo-2.18.2-1.el8_1.aarch64.rpm
git-daemon-2.18.2-1.el8_1.aarch64.rpm
git-daemon-debuginfo-2.18.2-1.el8_1.aarch64.rpm
git-debuginfo-2.18.2-1.el8_1.aarch64.rpm
git-debugsource-2.18.2-1.el8_1.aarch64.rpm
git-instaweb-2.18.2-1.el8_1.aarch64.rpm
git-subtree-2.18.2-1.el8_1.aarch64.rpm
git-svn-2.18.2-1.el8_1.aarch64.rpm
git-svn-debuginfo-2.18.2-1.el8_1.aarch64.rpm

noarch:
git-all-2.18.2-1.el8_1.noarch.rpm
git-core-doc-2.18.2-1.el8_1.noarch.rpm
git-email-2.18.2-1.el8_1.noarch.rpm
git-gui-2.18.2-1.el8_1.noarch.rpm
gitk-2.18.2-1.el8_1.noarch.rpm
gitweb-2.18.2-1.el8_1.noarch.rpm
perl-Git-2.18.2-1.el8_1.noarch.rpm
perl-Git-SVN-2.18.2-1.el8_1.noarch.rpm

ppc64le:
git-2.18.2-1.el8_1.ppc64le.rpm
git-core-2.18.2-1.el8_1.ppc64le.rpm
git-core-debuginfo-2.18.2-1.el8_1.ppc64le.rpm
git-daemon-2.18.2-1.el8_1.ppc64le.rpm
git-daemon-debuginfo-2.18.2-1.el8_1.ppc64le.rpm
git-debuginfo-2.18.2-1.el8_1.ppc64le.rpm
git-debugsource-2.18.2-1.el8_1.ppc64le.rpm
git-instaweb-2.18.2-1.el8_1.ppc64le.rpm
git-subtree-2.18.2-1.el8_1.ppc64le.rpm
git-svn-2.18.2-1.el8_1.ppc64le.rpm
git-svn-debuginfo-2.18.2-1.el8_1.ppc64le.rpm

s390x:
git-2.18.2-1.el8_1.s390x.rpm
git-core-2.18.2-1.el8_1.s390x.rpm
git-core-debuginfo-2.18.2-1.el8_1.s390x.rpm
git-daemon-2.18.2-1.el8_1.s390x.rpm
git-daemon-debuginfo-2.18.2-1.el8_1.s390x.rpm
git-debuginfo-2.18.2-1.el8_1.s390x.rpm
git-debugsource-2.18.2-1.el8_1.s390x.rpm
git-instaweb-2.18.2-1.el8_1.s390x.rpm
git-subtree-2.18.2-1.el8_1.s390x.rpm
git-svn-2.18.2-1.el8_1.s390x.rpm
git-svn-debuginfo-2.18.2-1.el8_1.s390x.rpm

x86_64:
git-2.18.2-1.el8_1.x86_64.rpm
git-core-2.18.2-1.el8_1.x86_64.rpm
git-core-debuginfo-2.18.2-1.el8_1.x86_64.rpm
git-daemon-2.18.2-1.el8_1.x86_64.rpm
git-daemon-debuginfo-2.18.2-1.el8_1.x86_64.rpm
git-debuginfo-2.18.2-1.el8_1.x86_64.rpm
git-debugsource-2.18.2-1.el8_1.x86_64.rpm
git-instaweb-2.18.2-1.el8_1.x86_64.rpm
git-subtree-2.18.2-1.el8_1.x86_64.rpm
git-svn-2.18.2-1.el8_1.x86_64.rpm
git-svn-debuginfo-2.18.2-1.el8_1.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-1348
https://access.redhat.com/security/cve/CVE-2019-1349
https://access.redhat.com/security/cve/CVE-2019-1352
https://access.redhat.com/security/cve/CVE-2019-1387
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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