Heap-based buffer overflow in tiff (Alpine package)

1) Heap-based buffer overflow

EUVDB-ID: #VU16180

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-12900

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

Exploit availability: No

Description

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

The vulnerability exists due to heap-based buffer overflow in the cpSeparateBufToContigBuf function in tiffcp.c. A remote unauthenticated attacker can trick the victim into opening a specially crafted TIFF file that can trigger memory corruption and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tiff (Alpine package): 4.0.9-r6 - 4.0.9-r8

External links

http://git.alpinelinux.org/aports/commit/?id=264df00ff86995f0cec1bf60488ce863f57304d9
http://git.alpinelinux.org/aports/commit/?id=928d37312121806dd7635626fa0d21b333bb4eb0
http://git.alpinelinux.org/aports/commit/?id=0c504ed6ce49ffab8f4090a5a3ddaeeda27ecbf5
http://git.alpinelinux.org/aports/commit/?id=42e3145e0c57d0a2e3c2717842ae6cfa41e3a03e
http://git.alpinelinux.org/aports/commit/?id=e3af38305d3f591e839e6e77fce5cbbb19c1dc9f
http://git.alpinelinux.org/aports/commit/?id=fc22ab4fd31b719b3fe5a77dbe226c306e94d888

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.