XXE attack in expat (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-4472 |
| CWE-ID | CWE-611 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
expat (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) XXE attack
EUVDB-ID: #VU12378
Risk: Low
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-4472
CWE-ID:
CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to the overflow protection in Expat is removed by compilers with certain optimization settings. A remote attacker can supply specially crafted XML data and cause the service to crash.
The vulnerability exists due to incomplete fix for
CVE-2015-1283 and CVE-2015-2716.
Install update from vendor's website.
Vulnerable software versionsexpat (Alpine package): 2.1.1-r0 - 2.1.1-r1
External linkshttp://git.alpinelinux.org/aports/commit/?id=4ade9bd2f5a58188134c8d14ecae193c70da237e
http://git.alpinelinux.org/aports/commit/?id=61684c5b8c0524c2a4a18513bf15e976df5d0e87
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.
