Curtis Galloway libexif up to 0.6.20 exif-entry.c exif_convert_utf16_to_utf8 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Curtis Galloway libexif up to 0.6.20. The impacted element is the function exif_convert_utf16_to_utf8 of the file exif-entry.c. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2012-2813. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Curtis Galloway libexif up to 0.6.20 and classified as critical. This issue affects the function exif_convert_utf16_to_utf8 of the file exif-entry.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, and availability. The summary by CVE is:

The exif_convert_utf16_to_utf8 function in exif-entry.c in the EXIF Tag Parsing Library (aka libexif) before 0.6.21 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from process memory via crafted EXIF tags in an image.

The weakness was disclosed 07/13/2012 by Mateusz Jurczyk (Website). The advisory is shared at ubuntu.com. The identification of this vulnerability is CVE-2012-2813 since 05/19/2012. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 62047 (CentOS 5 / 6 : libexif (CESA-2012:1255)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350621 (Amazon Linux Security Advisory for libexif: ALAS-2012-126).

Upgrading to version 0.6.19 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (76903), Tenable (62047), SecurityFocus (BID 54437†), Secunia (SA49988†) and Vulnerability Center (SBV-35772†). The entries VDB-61283, VDB-61282, VDB-61281 and VDB-61280 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 62047
Nessus Name: CentOS 5 / 6 : libexif (CESA-2012:1255)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 72499
OpenVAS Name: Debian Security Advisory DSA 2559-1 (libexif)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libexif 0.6.19

Timelineinfo

05/19/2012 🔍
07/13/2012 +55 days 🔍
07/13/2012 +0 days 🔍
07/13/2012 +0 days 🔍
07/13/2012 +0 days 🔍
07/19/2012 +6 days 🔍
07/31/2012 +12 days 🔍
03/23/2015 +965 days 🔍
12/06/2021 +2450 days 🔍

Sourcesinfo

Advisory: RHSA-2012:1255
Researcher: Mateusz Jurczyk
Status: Not defined

CVE: CVE-2012-2813 (🔍)
GCVE (CVE): GCVE-0-2012-2813
GCVE (VulDB): GCVE-100-61277

OVAL: 🔍

X-Force: 76903
SecurityFocus: 54437 - libexif Multiple Remote Vulnerabilities
Secunia: 49988 - Slackware update for libexif, Moderately Critical
Vulnerability Center: 35772 - Libexif Before 0.6.21 Remote DoS Vulnerability via an Image with Crafted EXIF Tags (CVE-2012-2813), Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/06/2021 08:12
Changes: 03/23/2015 16:50 (64), 04/15/2017 16:08 (13), 12/06/2021 08:03 (3), 12/06/2021 08:09 (1), 12/06/2021 08:12 (2)
Complete: 🔍
Cache ID: 216::103

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