Heap-based buffer overread in tcpdump (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-16808 |
| CWE-ID | CWE-126 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
tcpdump (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) Heap-based buffer overread
EUVDB-ID: #VU9337
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-2017-16808
CWE-ID:
CWE-126 - Buffer over-read
Exploit availability: No
Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to heap-based buffer overread in 'addrtoname.c' when handling malicious input. A remote attacker can supply a specially crafted pcap fil, trigger buffer overread and cause the service to crash.
Successful exploitation of the vulnerability results in denial of service.
Install update from vendor's website.
Vulnerable software versionstcpdump (Alpine package): 4.9.0-r0 - 4.9.2-r4
External linkshttp://git.alpinelinux.org/aports/commit/?id=dd5d221102dfcc65b44c43c915d134e830e8d599
http://git.alpinelinux.org/aports/commit/?id=552c3620773db0fb6a4d1e714eaa49b6a16de052
http://git.alpinelinux.org/aports/commit/?id=e3e3e3952958b31bf6f3e01e6c73b30e3e126745
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.
