Integer overflow in wireshark (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-5597
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
 wireshark (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU33560

Risk: Medium

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-2017-5597

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

In Wireshark 2.2.0 to 2.2.3 and 2.0.0 to 2.0.9, the DHCPv6 dissector could go into a large loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-dhcpv6.c by changing a data type to avoid an integer overflow.

Mitigation

Install update from vendor's website.

Vulnerable software versions

wireshark (Alpine package): 2.0.4-r0 - 2.0.8-r0

CPE2.3 External links

http://git.alpinelinux.org/aports/commit/?id=a5b975345dfe9cf2ff52c8da808e1e804ad6dfa9
http://git.alpinelinux.org/aports/commit/?id=5e183179746f9973f3bd576e6dc67bc1d7acbecd
http://git.alpinelinux.org/aports/commit/?id=51b11a6ae20d7bcd9c086cafbe85688785b2d72e


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.



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