Ubuntu update for rsync
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2016-9840 CVE-2016-9841 CVE-2016-9842 CVE-2016-9843 |
| CWE-ID | CWE-125 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
rsync (Ubuntu package) Operating systems & Components / Operating system package or component |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Denial of service
EUVDB-ID: #VU6663
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2016-9840
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in zlib due to out-of-bounds pointer arithmetic in inftrees.c. A remote attacker can send a specially crafted document, trick the victim into opening it, and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
- Ubuntu 18.04 LTS
- rsync - 3.1.2-2.1ubuntu1.1
- Ubuntu 16.04 LTS
- rsync - 3.1.1-3ubuntu1.3
rsync (Ubuntu package): 3.1.1-3ubuntu1 - 3.1.2-2.1ubuntu1
CPE2.3- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1.1:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1.2:*:*:*:*:ubuntu:*:*
https://usn.ubuntu.com/4292-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Denial of service
EUVDB-ID: #VU6664
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2016-9841
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in zlib due to out-of-bounds pointer arithmetic in inftrees.c. A remote attacker can cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
- Ubuntu 18.04 LTS
- rsync - 3.1.2-2.1ubuntu1.1
- Ubuntu 16.04 LTS
- rsync - 3.1.1-3ubuntu1.3
rsync (Ubuntu package): 3.1.1-3ubuntu1 - 3.1.2-2.1ubuntu1
CPE2.3- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1.1:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1.2:*:*:*:*:ubuntu:*:*
https://usn.ubuntu.com/4292-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Denial of service
EUVDB-ID: #VU6665
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2016-9842
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in zlib due to an undefined left shift of negative number. A remote attacker can send a specially crafted document, trick the victim into opening it, and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
- Ubuntu 18.04 LTS
- rsync - 3.1.2-2.1ubuntu1.1
- Ubuntu 16.04 LTS
- rsync - 3.1.1-3ubuntu1.3
rsync (Ubuntu package): 3.1.1-3ubuntu1 - 3.1.2-2.1ubuntu1
CPE2.3- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1.1:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1.2:*:*:*:*:ubuntu:*:*
https://usn.ubuntu.com/4292-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Denial of service
EUVDB-ID: #VU6666
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2016-9843
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in zlib due to big-endian out-of-bounds pointer. A remote attacker can send a specially crafted document, trick the victim into opening it, and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
- Ubuntu 18.04 LTS
- rsync - 3.1.2-2.1ubuntu1.1
- Ubuntu 16.04 LTS
- rsync - 3.1.1-3ubuntu1.3
rsync (Ubuntu package): 3.1.1-3ubuntu1 - 3.1.2-2.1ubuntu1
CPE2.3- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1.1:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:rsync_ubuntu_package:3.1.1-3ubuntu1.2:*:*:*:*:ubuntu:*:*
https://usn.ubuntu.com/4292-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
