NULL pointer dereference in LibTIFF



Published: 2018-01-02
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-18013
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
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LibTIFF
Universal components / Libraries / Libraries used by multiple products

Vendor LibTIFF

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU9820

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18013

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference error in tif_print.c within TIFFPrintDirectory() function. A remote attacker can trigger a NULL pointer dereference error and crash the affected application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

LibTIFF: 4.0.9

External links

http://bugzilla.maptools.org/show_bug.cgi?id=2770
http://gitlab.com/libtiff/libtiff/commit/c6f41df7b581402dfba3c19a1e3df4454c551a01


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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