#VU31853 Out-of-bounds read in libexif - CVE-2012-2812

Vulnerability identifier: #VU31853

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2012-2812

CWE-ID: CWE-125

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 gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the exif_entry_get_value function in exif-entry.c in the EXIF Tag Parsing Library. A remote attacker can create a specially crafted image, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libexif: 0.6.9 - 0.6.20

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External links
https://lists.opensuse.org/opensuse-security-announce/2012-07/msg00014.html
https://lists.opensuse.org/opensuse-security-announce/2012-07/msg00015.html
https://rhn.redhat.com/errata/RHSA-2012-1255.html
https://secunia.com/advisories/49988
https://sourceforge.net/mailarchive/message.php?msg_id=29534027
https://www.debian.org/security/2012/dsa-2559
https://www.securityfocus.com/bid/54437
https://www.ubuntu.com/usn/USN-1513-1

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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.