Null pointer dereference in tiff (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-18661 |
| CWE-ID | CWE-476 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
tiff (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Null pointer dereference
EUVDB-ID: #VU15901
Risk: Low
CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-18661
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to NULL pointer dereference in the function LZWDecode in the file tif_lzw.c. A remote attacker can trick the victim into opening a specially crafted input, trigger NULL pointer dereference and cause the service to crash.
MitigationInstall update from vendor's website.
Vulnerable software versionstiff (Alpine package): 4.0.9-r6 - 4.0.9-r8
External linkshttp://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.
