USN-8349-2

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Source
https://ubuntu.com/security/notices/USN-8349-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8349-2.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8349-2
Published
2026-06-08T16:41:09Z
Modified
2026-06-08T23:00:12.668380848Z
Summary
rsync regression
Details

USN-8349-1 fixed vulnerabilities in rsync. The update introduced multiple regressions in rsync functionality. This update fixes the problem.

Original advisory details:

Calum Hutton discovered that rsync contained a heap-based out-of-bounds read when handling file transfers. A remote attacker with read access to an rsync server could possibly use this issue to cause a denial of service. (CVE-2025-10158)

Batuhan Sancak, Damien Neil, and Michael Stapelberg discovered that rsync daemons configured without chroot protection were exposed to a race condition on parent path components. A local attacker with write access to a module could possibly use this issue to overwrite files, obtain sensitive information, or escalate privileges. (CVE-2026-29518)

It was discovered that rsync did not properly validate a length value while sorting extended attributes. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-41035)

It was discovered that rsync performed reverse-DNS lookups after chrooting in some daemon configurations. A remote attacker could possibly use this issue to bypass hostname-based access controls and access network services. (CVE-2026-43617)

Omar Elsayed discovered that rsync did not properly check for integer overflows while decoding compressed tokens. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-43618)

Andrew Tridgell discovered that rsync did not fully fix a symlink race condition in path-based system calls for daemons configured without chroot protection. A local attacker could possibly use this issue to overwrite files, obtain sensitive information, or escalate privileges. (CVE-2026-43619)

Pratham Gupta discovered that rsync did not properly validate an index while processing file lists. A remote attacker could possibly use this issue to cause rsync to crash, resulting in a denial of service. (CVE-2026-43620)

Michal Ruprich discovered that rsync contained an off-by-one error while handling HTTP proxy responses. An attacker able to intercept network communications or a malicious proxy server could possibly use this issue to cause a denial of service. (CVE-2026-45232)

References

Affected packages

Ubuntu:22.04:LTS / rsync

Package

Name
rsync
Purl
pkg:deb/ubuntu/rsync?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.2.7-0ubuntu0.22.04.7

Affected versions

3.*
3.2.3-4ubuntu1
3.2.3-4ubuntu2
3.2.3-8ubuntu1
3.2.3-8ubuntu2
3.2.3-8ubuntu3
3.2.3-8ubuntu3.1
3.2.7-0ubuntu0.22.04.2
3.2.7-0ubuntu0.22.04.3
3.2.7-0ubuntu0.22.04.4
3.2.7-0ubuntu0.22.04.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.2.7-0ubuntu0.22.04.7"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8349-2.json"

Ubuntu:24.04:LTS / rsync

Package

Name
rsync
Purl
pkg:deb/ubuntu/rsync?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.2.7-1ubuntu1.5

Affected versions

3.*
3.2.7-1
3.2.7-1build1
3.2.7-1build2
3.2.7-1ubuntu1
3.2.7-1ubuntu1.1
3.2.7-1ubuntu1.2
3.2.7-1ubuntu1.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.2.7-1ubuntu1.5"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8349-2.json"

Ubuntu:25.10 / rsync

Package

Name
rsync
Purl
pkg:deb/ubuntu/rsync?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.1+ds1-5ubuntu1.3

Affected versions

3.*
3.4.1+ds1-3
3.4.1+ds1-4
3.4.1+ds1-5
3.4.1+ds1-5ubuntu1
3.4.1+ds1-5ubuntu1.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.4.1+ds1-5ubuntu1.3"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:25.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8349-2.json"

Ubuntu:26.04:LTS / rsync

Package

Name
rsync
Purl
pkg:deb/ubuntu/rsync?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.1+ds1-7ubuntu0.3

Affected versions

3.*
3.4.1+ds1-5ubuntu1
3.4.1+ds1-6
3.4.1+ds1-7
3.4.1+ds1-7ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.4.1+ds1-7ubuntu0.3"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8349-2.json"