Curtis Galloway libexif up to 0.6.20 exif-entry.c exif_convert_utf16_to_utf8 numeric error

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in Curtis Galloway libexif up to 0.6.20 and classified as critical. Affected by this vulnerability is the function exif_convert_utf16_to_utf8 of the file exif-entry.c. Performing a manipulation results in numeric error. This vulnerability is identified as CVE-2012-2840. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Curtis Galloway libexif up to 0.6.20. This affects the function exif_convert_utf16_to_utf8 of the file exif-entry.c. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Off-by-one error in 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 or possibly execute arbitrary code via crafted EXIF tags in an image.

The weakness was released 07/13/2012 by Mateusz Jurczyk (Website). The advisory is shared at ubuntu.com. This vulnerability is uniquely identified as CVE-2012-2840 since 05/19/2012. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for 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 (76907), Tenable (62047), SecurityFocus (BID 54437†), Secunia (SA49988†) and Vulnerability Center (SBV-35773†). Entries connected to this vulnerability are available at VDB-61283, VDB-61282, VDB-61280 and VDB-61279. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
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-2012-2840 (🔍)
GCVE (CVE): GCVE-0-2012-2840
GCVE (VulDB): GCVE-100-61281

OVAL: 🔍

X-Force: 76907
SecurityFocus: 54437 - libexif Multiple Remote Vulnerabilities
Secunia: 49988 - Slackware update for libexif, Moderately Critical
Vulnerability Center: 35773 - Libexif Before 0.6.21 Off-By-One Error Allows Remote Code Execution Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/06/2021 08:48
Changes: 03/23/2015 16:50 (64), 04/15/2017 16:09 (13), 12/06/2021 08:41 (3), 12/06/2021 08:44 (1), 12/06/2021 08:48 (2)
Complete: 🔍
Cache ID: 216:EE1:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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