Integer overflow in openjdk8 (Alpine package)

1) Integer overflow

EUVDB-ID: #VU14544

Risk: Low

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

CVE-ID: CVE-2018-13785

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to integer overflow when a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c). A remote attacker can send a specially crafted PNG file, trigger divide-by-zero error and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

openjdk8 (Alpine package): 8.181.13-r0

CPE2.3

• cpe:2.3:o:alpine:openjdk8_alpine_package:8.181.13-r0:*:*:*:*:alpine_linux:*:3.4

External links

https://git.alpinelinux.org/aports/commit/?id=0905d093856a9727b68783a3fe9cea30f5d86fcc
https://git.alpinelinux.org/aports/commit/?id=d7f33f856ada4bcdb7fc556e53404e7e5c97abe1
https://git.alpinelinux.org/aports/commit/?id=813a6e811df47ec9eb24129eee3d1ef560a53a84
https://git.alpinelinux.org/aports/commit/?id=95b6385e634240fec0b4445221f22915c7fdc384

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.