Red Hat update for tomcat

1) Information disclosure

EUVDB-ID: #VU13993

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-8037

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to improper handling of connection closures by the non-blocking I/O (NIO) and NIO2 connectors. A remote unauthenticated attacker can send a specially crafted request that submits malicious input, trigger bug in the tracking of connection closures, reuse user sessions in a new connection and access arbitrary data.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for x86_64: 6 - 7.0

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux:6:*:*:*:*:*:*:*
• cpe:2.3:o:red_hat:red_hat_enterprise_linux:7.0:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2018:2868

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.