Vulnerability identifier: #VU31855

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2007-6351

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libexif
Universal components / Libraries / Libraries used by multiple products

Vendor: libexif.sourceforge.net

Description

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

The vulnerability exists due to infinite loop in the the exif_loader_write function in exif_loader.c. A remote attacker can consume all available system resources and cause denial of service conditions via a specially crafted image.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libexif: 0.6.9 - 0.6.16

---

External links
http://bugs.gentoo.org/show_bug.cgi?id=202350
http://security.gentoo.org/glsa/glsa-200712-15.xml
http://www.debian.org/security/2008/dsa-1487
http://www.mandriva.com/security/advisories?name=MDVSA-2008:005
http://www.novell.com/linux/security/advisories/suse_security_summary_report.html
http://www.redhat.com/support/errata/RHSA-2007-1165.html
http://www.securityfocus.com/archive/1/485822/100/0/threaded
http://www.securityfocus.com/bid/26976
http://www.securitytracker.com/id?1019124
http://www.ubuntu.com/usn/usn-654-1
http://www.vupen.com/english/advisories/2007/4278
http://bugzilla.redhat.com/show_bug.cgi?id=425551
http://bugzilla.redhat.com/show_bug.cgi?id=425621
http://bugzilla.redhat.com/show_bug.cgi?id=425631
http://exchange.xforce.ibmcloud.com/vulnerabilities/39166
http://issues.rpath.com/browse/RPL-2068
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9420
http://www.redhat.com/archives/fedora-package-announce/2007-December/msg00597.html
http://www.redhat.com/archives/fedora-package-announce/2007-December/msg00626.html

---

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.