Integer overflow in openjdk8 (Alpine package)



Published: 2018-11-06
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-16435
CWE-ID CWE-122
CWE-190
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		openjdk8 (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU14624

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-16435

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in the AllocateDataSet function in cmscgats.c when handling malicious input. A remote unauthenticated attacker can supply a specially crafted file in the second argument to cmsIT8LoadFromFile, trigger heap-based buffer overflow in the SetData function and cause the service to crash or execute arbitrary code with elevated prvileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

openjdk8 (Alpine package): 8.181.13-r0

CPE2.3 External links

http://git.alpinelinux.org/aports/commit/?id=915850b0d532b041eb0b09854f5c78165dca8a07
http://git.alpinelinux.org/aports/commit/?id=0905d093856a9727b68783a3fe9cea30f5d86fcc
http://git.alpinelinux.org/aports/commit/?id=d7f33f856ada4bcdb7fc556e53404e7e5c97abe1
http://git.alpinelinux.org/aports/commit/?id=813a6e811df47ec9eb24129eee3d1ef560a53a84
http://git.alpinelinux.org/aports/commit/?id=95b6385e634240fec0b4445221f22915c7fdc384
http://git.alpinelinux.org/aports/commit/?id=2fabafb2b32d929a4de15f8ae3e7a8379120e495
http://git.alpinelinux.org/aports/commit/?id=348c14c7421c7d8fcdc82fd7014fb75eed11f56f


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. However, proof of concept for this vulnerability is available.



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