Ubuntu update for curl



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2017-8816
CVE-2017-8817
CWE-ID CWE-119
CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU9458

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-8816

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to buffer overflow in the NTLM authentication process. A remote unauthenticated attacker can use vectors involving long user and password fields, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected packages

Ubuntu 17.10:
libcurl3-nss 7.55.1-1ubuntu2.2
curl 7.55.1-1ubuntu2.2
libcurl3-gnutls 7.55.1-1ubuntu2.2
libcurl3 7.55.1-1ubuntu2.2
Ubuntu 17.04:
libcurl3-nss 7.52.1-4ubuntu1.4
curl 7.52.1-4ubuntu1.4
libcurl3-gnutls 7.52.1-4ubuntu1.4
libcurl3 7.52.1-4ubuntu1.4
Ubuntu 16.04 LTS:
libcurl3-nss 7.47.0-1ubuntu2.5
curl 7.47.0-1ubuntu2.5
libcurl3-gnutls 7.47.0-1ubuntu2.5
libcurl3 7.47.0-1ubuntu2.5
Ubuntu 14.04 LTS:
libcurl3-nss 7.35.0-1ubuntu2.13
curl 7.35.0-1ubuntu2.13
libcurl3-gnutls 7.35.0-1ubuntu2.13
libcurl3 7.35.0-1ubuntu2.13

Vulnerable software versions

Ubuntu: 14.04 - 17.10

CPE2.3 External links

https://www.ubuntu.com/usn/usn-3498-1/


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) 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 17.10:
libcurl3-nss 7.55.1-1ubuntu2.2
curl 7.55.1-1ubuntu2.2
libcurl3-gnutls 7.55.1-1ubuntu2.2
libcurl3 7.55.1-1ubuntu2.2
Ubuntu 17.04:
libcurl3-nss 7.52.1-4ubuntu1.4
curl 7.52.1-4ubuntu1.4
libcurl3-gnutls 7.52.1-4ubuntu1.4
libcurl3 7.52.1-4ubuntu1.4
Ubuntu 16.04 LTS:
libcurl3-nss 7.47.0-1ubuntu2.5
curl 7.47.0-1ubuntu2.5
libcurl3-gnutls 7.47.0-1ubuntu2.5
libcurl3 7.47.0-1ubuntu2.5
Ubuntu 14.04 LTS:
libcurl3-nss 7.35.0-1ubuntu2.13
curl 7.35.0-1ubuntu2.13
libcurl3-gnutls 7.35.0-1ubuntu2.13
libcurl3 7.35.0-1ubuntu2.13

Vulnerable software versions

Ubuntu: 14.04 - 17.10

CPE2.3 External links

https://www.ubuntu.com/usn/usn-3498-1/


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.



###SIDEBAR###