Vulnerability-Lookup

SUSE-SU-2026:3629-1

Vulnerability from csaf_suse - Published: 2026-08-17 16:45 - Updated: 2026-09-17 16:40

Summary

Security update for rsync

Severity

Important

Notes

Title of the patch: Security update for rsync

Description of the patch: This update for rsync fixes the following issues: - CVE-2026-29518: Symlink-Race TOCTOU in Daemon (bsc#1264511). - CVE-2026-43619: Symlink Race Condition via Path-Based Syscalls (bsc#1264514).

Patchnames: SUSE-2026-3629,SUSE-SLE-SERVER-12-SP5-LTSS-2026-3629,SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-3629

CVE-2026-29518

7 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Recommended 17 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP5:rsync-0:3.1.3-3.46.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP5:rsync-0:3.1.3-3.46.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP5:rsync-0:3.1.3-3.46.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP5:rsync-0:3.1.3-3.46.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:rsync-0:3.1.3-3.46.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:rsync-0:3.1.3-3.46.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:rsync-0:3.1.3-3.46.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5-LTSS:rsync-0:3.1.3-3.46.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5:rsync-0:3.1.3-3.46.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5:rsync-0:3.1.3-3.46.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5:rsync-0:3.1.3-3.46.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5:rsync-0:3.1.3-3.46.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:rsync-0:3.1.3-3.46.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP5:rsync-0:3.1.3-3.46.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP5:rsync-0:3.1.3-3.46.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP5:rsync-0:3.1.3-3.46.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP5:rsync-0:3.1.3-3.46.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2026-43619

6.3 (Medium)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

Recommended 17 products, the same list as for CVE-2026-29518

Threats

Impact moderate

References

17 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-updates/2026…	self
https://bugzilla.suse.com/1264511	self
https://bugzilla.suse.com/1264514	self
https://www.suse.com/security/cve/CVE-2026-29518/	self
https://www.suse.com/security/cve/CVE-2026-43619/	self
https://www.suse.com/security/cve/CVE-2026-29518	external
https://bugzilla.suse.com/1264511	external
https://bugzilla.suse.com/1264514	external
https://bugzilla.suse.com/1269055	external
https://bugzilla.suse.com/1269056	external
https://bugzilla.suse.com/1269057	external
https://www.suse.com/security/cve/CVE-2026-43619	external
https://bugzilla.suse.com/1264514	external
https://bugzilla.suse.com/1269053	external

JSON

To clipboard

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}

CVE-2026-29518 (GCVE-0-2026-29518)

Vulnerability from cvelistv5 – Published: 2026-05-20 12:48 – Updated: 2026-09-01 12:04 X_Open Source

Title

Rsync < 3.4.3 TOCTOU Race Condition Allows Symlink-Based Arbitrary File Write

Summary

Rsync versions before 3.4.3 contain a time-of-check to time-of-use (TOCTOU) race condition in daemon file handling that allows attackers to redirect file writes outside intended directories by replacing parent directory components with symbolic links. Attackers with write access to a module path can exploit this race condition to create or overwrite arbitrary files, potentially modifying sensitive system files and achieving privilege escalation when the daemon runs with elevated privileges. This vulnerability can only be triggered if the chroot setting is false.

Severity

7.3 (High)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-20 14:50 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

VulnCheck mitre root

References

12 references

URL	Tags
https://github.com/RsyncProject/rsync/pull/895/ch…	issue-tracking
https://github.com/RsyncProject/rsync/releases/ta…	release-notes
https://michael.stapelberg.ch/posts/2026-05-24-mi…	technical-description
https://www.vulncheck.com/advisories/rsync-toctou…	third-party-advisory
https://access.redhat.com/security/cve/CVE-2026-29518	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2469055	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:54769	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26332	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26410	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26408	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:29197	vendor-advisoryx_refsource_REDHAT

Impacted products

8 products

Vendor	Product	Version
RsyncProject	rsync	Affected: 0 , < 3.4.3 (semver) cpe:2.3:a:samba:rsync::::::::
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:3.4.4-1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:3.1.3-27.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:3.2.5-7.el9_8.2 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4.22	Unaffected: 4.22.9.8.202608130832-0 , < * (rpm) cpe:/a:redhat:openshift:4.22::el9
Red Hat	Red Hat Discovery 2	Unaffected: 1782166952 , < * (rpm) cpe:/a:redhat:discovery:2::el9
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7

Date Public

2026-05-19 00:00

Credits

Nullx3D (Batuhan SANCAK) Michael Stapelberg Damien Neil

Show details on NVD website

JSON

To clipboard

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CVE-2026-43619 (GCVE-0-2026-43619)

Vulnerability from cvelistv5 – Published: 2026-05-20 00:49 – Updated: 2026-07-14 20:01

Title

Rsync < 3.4.3 Symlink Race Condition via Path-Based Syscalls

Summary

Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module. Attackers with local filesystem access can exploit the timing window between path resolution and syscall execution by swapping symlinks to apply sender-supplied permissions, ownership, timestamps, or filenames to arbitrary files outside the intended module boundary on rsync daemons configured with 'use chroot = no'.

Severity

7.2 (High)


                        
                          CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

6.3 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-20 13:09 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/RsyncProject/rsync/security/ad…	vendor-advisory
https://github.com/RsyncProject/rsync/releases/ta…	release-notes
https://www.vulncheck.com/advisories/rsync-symlin…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
RsyncProject	rsync	Affected: 0 , < 3.4.3 (semver) cpe:2.3:a:samba:rsync::::::::

Date Public

2026-05-19 00:00

Credits

Andrew Tridgell (@tridge)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

SUSE-SU-2026:3629-1

CVE-2026-29518 (GCVE-0-2026-29518)

CVE-2026-43619 (GCVE-0-2026-43619)

Tags

Sightings

Nomenclature

Related by attack behaviour