Vulnerability identifier: #VU39603

Vulnerability risk: Medium

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-2017-5503

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
JasPer
Client/Desktop applications / Multimedia software

Vendor: The JasPer Project

Description

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

The dec_clnpass function in libjasper/jpc/jpc_t1dec.c in JasPer 1.900.27 allows remote attackers to cause a denial of service (invalid memory write and crash) or possibly have unspecified other impact via a crafted image.

Mitigation
Install update from vendor's website.

Vulnerable software versions

JasPer: 1.900.27

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External links
http://www.openwall.com/lists/oss-security/2017/01/16/3
http://www.openwall.com/lists/oss-security/2017/01/17/10
http://www.securityfocus.com/bid/95683
http://blogs.gentoo.org/ago/2017/01/16/jasper-invalid-memory-write-in-dec_clnpass-jpc_t1dec-c/
http://security.gentoo.org/glsa/201908-03

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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.