Ubuntu update for curl

1) Out-of-bounds read

EUVDB-ID: #VU9459

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-8817

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to redirect the target client to an arbitrary site.

The vulnerability exists due to out-of-bounds read in the FTP wildcard function (CURLOPT_WILDCARDMATCH). A remote unauthenticated attacker can use a string that ends with an '[' character, trigger out-of-bounds read and cause the target connected libcurl client to be redirected.

Mitigation

Update the affected packages

Ubuntu 12.04 LTS:

libcurl3-nss 7.22.0-3ubuntu4.19

curl 7.22.0-3ubuntu4.19

libcurl3-gnutls 7.22.0-3ubuntu4.19

libcurl3 7.22.0-3ubuntu4.19

Vulnerable software versions

Ubuntu: 12.04

CPE2.3

• cpe:2.3:o:canonical:ubuntu:12.04:*:*:*:*:*:*:*

External links

https://www.ubuntu.com/usn/usn-3498-2/

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.