NULL pointer dereference in JasPer

1) NULL pointer dereference

EUVDB-ID: #VU39348

Risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-8884

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 a NULL pointer dereference error in libjasper/bmp/bmp_dec.c in JasPer 1.900.5 allows remote attackers to cause a denial of service (NULL pointer dereference) by calling the imginfo command with a crafted BMP image. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-8690. A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

JasPer: 1.900.5

Fedora: 1.900.5 - 24

External links

http://www.openwall.com/lists/oss-security/2016/10/23/1
http://www.openwall.com/lists/oss-security/2016/10/23/9
http://www.securityfocus.com/bid/93834
http://access.redhat.com/errata/RHSA-2017:1208
http://blogs.gentoo.org/ago/2016/10/18/jasper-two-null-pointer-dereference-in-bmp_getdata-bmp_dec-c-incomplete-fix-for-cve-2016-8690/
http://bugzilla.redhat.com/show_bug.cgi?id=1385499
http://github.com/mdadams/jasper/commit/5d66894d2313e3f3469f19066e149e08ff076698
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/22FCKKHQCQ3S6TZY5G44EFDTMWOJXJRD/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EGI2FZQLOTSZI3VA4ECJERI74SMNQDL4/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.