CVE-2023-4759 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2023-4759 Interim 1 4 2023-10-18T23:11:39Z current 2023-09-13T23:22:32Z 2023-10-18T23:11:39Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2023-4759 Arbitrary File Overwrite in Eclipse JGit <= 6.6.0 In Eclipse JGit, all versions <= 6.6.0.202305301015-r, a symbolic link present in a specially crafted git repository can be used to write a file to locations outside the working tree when this repository is cloned with JGit to a case-insensitive filesystem, or when a checkout from a clone of such a repository is performed on a case-insensitive filesystem. This can happen on checkout (DirCacheCheckout), merge (ResolveMerger via its WorkingTreeUpdater), pull (PullCommand using merge), and when applying a patch (PatchApplier). This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command. The issue occurs only on case-insensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration. Setting git configuration option core.symlinks = false before checking out avoids the problem. The issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/  and repo.eclipse.org https://repo.eclipse.org/content/repositories/jgit-releases/ . The JGit maintainers would like to thank RyotaK for finding and reporting this issue. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Enterprise Storage 7.1 SUSE Linux Enterprise Module for Development Tools 15 SP4 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise Module for Development Tools 15 SP4 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Server 15 SP2-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Module for Development Tools 15 SP4 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Module for Development Tools 15 SP4 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Module for Development Tools 15 SP4 SUSE Linux Enterprise Module for Development Tools 15 SP4 SUSE Linux Enterprise Module for Development Tools 15 SP4 openSUSE Tumbleweed eclipse-jgit-5.11.0-9.1 jgit eclipse-jgit-5.11.0-9.1 as a component of openSUSE Tumbleweed jgit as a component of SUSE Enterprise Storage 7.1 jgit as a component of SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS jgit as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS jgit as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS jgit as a component of SUSE Linux Enterprise Module for Development Tools 15 SP4 jgit as a component of SUSE Linux Enterprise Module for Development Tools 15 SP5 jgit as a component of SUSE Linux Enterprise Real Time 15 SP3 jgit as a component of SUSE Linux Enterprise Server 15 SP2-LTSS jgit as a component of SUSE Linux Enterprise Server 15 SP3-LTSS jgit as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 jgit as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 Arbitrary File Overwrite in Eclipse JGit <= 6.6.0 In Eclipse JGit, all versions <= 6.6.0.202305301015-r, a symbolic link present in a specially crafted git repository can be used to write a file to locations outside the working tree when this repository is cloned with JGit to a case-insensitive filesystem, or when a checkout from a clone of such a repository is performed on a case-insensitive filesystem. This can happen on checkout (DirCacheCheckout), merge (ResolveMerger via its WorkingTreeUpdater), pull (PullCommand using merge), and when applying a patch (PatchApplier). This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command. The issue occurs only on case-insensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration. Setting git configuration option core.symlinks = false before checking out avoids the problem. The issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/  and repo.eclipse.org https://repo.eclipse.org/content/repositories/jgit-releases/ . The JGit maintainers would like to thank RyotaK for finding and reporting this issue. CVE-2023-4759 openSUSE Tumbleweed:eclipse-jgit-5.11.0-9.1 SUSE Enterprise Storage 7.1:jgit SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:jgit SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS:jgit SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:jgit SUSE Linux Enterprise Module for Development Tools 15 SP4:jgit SUSE Linux Enterprise Module for Development Tools 15 SP5:jgit SUSE Linux Enterprise Real Time 15 SP3:jgit SUSE Linux Enterprise Server 15 SP2-LTSS:jgit SUSE Linux Enterprise Server 15 SP3-LTSS:jgit SUSE Linux Enterprise Server for SAP Applications 15 SP2:jgit SUSE Linux Enterprise Server for SAP Applications 15 SP3:jgit important 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H