SB2017012710 - NULL pointer dereference in LibTIFF

Description

This security bulletin contains information about 1 vulnerability.

1) NULL pointer dereference (CVE-ID: CVE-2016-9448)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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

The vulnerability exists due to a NULL pointer dereference error in LibTiff 4.0.6 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by setting the tags TIFF_SETGET_C16ASCII or TIFF_SETGET_C32_ASCII to values that access 0-byte arrays. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9297. A remote attacker can perform a denial of service (DoS) attack.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• http://bugzilla.maptools.org/show_bug.cgi?id=2593
• http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00017.html
• http://www.debian.org/security/2017/dsa-3762
• http://www.openwall.com/lists/oss-security/2016/11/18/15
• http://www.securityfocus.com/bid/94420
• https://security.gentoo.org/glsa/201701-16