Out-of-bounds read in Oracle Communications Diameter Signaling Router (DSR)



Published: 2020-07-16
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-7060
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Oracle Communications Diameter Signaling Router (DSR)
Server applications / Other server solutions

Vendor Oracle

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU25110

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7060

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when using certain "mbstring" functions to convert multibyte encodings. A remote attacker can supply data that will cause function "mbfl_filt_conv_big5_wchar" to read past the allocated buffer, trigger out-of-bounds read error and read contents of memory on the system or crash the application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle Communications Diameter Signaling Router (DSR): 8.0.0.0 - 8.4.0.0

External links

http://www.oracle.com/security-alerts/cpujul2020.html?504207


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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