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6.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in X.org libXfont. The impacted element is an unknown function of the file fserve.c. The manipulation results in memory corruption. This vulnerability was named CVE-2014-0210. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in X.org libXfont. It has been classified as critical. Affected is some unknown functionality of the file fserve.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Multiple buffer overflows in X.Org libXfont before 1.4.8 and 1.4.9x before 1.4.99.901 allow remote font servers to execute arbitrary code via a crafted xfs protocol reply to the (1) _fs_recv_conn_setup, (2) fs_read_open_font, (3) fs_read_query_info, (4) fs_read_extent_info, (5) fs_read_glyphs, (6) fs_read_list, or (7) fs_read_list_info function.

The weakness was presented 05/12/2014 by Huzaifa S. Sidhpurwala as Bug CVE-201 as confirmed bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability is traded as CVE-2014-0210 since 12/03/2013. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The advisory points out:

When parsing replies received from the font server, these calls do not check that the lengths and/or indexes returned by the font server are within the size of the reply or the bounds of the memory allocated to store the data, so could write past the bounds of allocated memory when storing the returned data.

The vulnerability scanner Nessus provides a plugin with the ID 73997 (Debian DSA-2927-1 : libxfont - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350325 (Amazon Linux Security Advisory for libXfont: ALAS-2014-404).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at cgit.freedesktop.org. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (93145), Tenable (73997), SecurityFocus (BID 67382†), Secunia (SA58474†) and SecurityTracker (ID 1030238†). See VDB-13217, VDB-13219, VDB-67096 and VDB-67083 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• X.org

Name

• libXfont

Version

• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.9
• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4
• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.3
• 1.4.4
• 1.4.5
• 1.4.6
• 1.4.7
• 1.4.99

License

• open-source

Website

• Vendor: https://www.x.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 73997
Nessus Name: Debian DSA-2927-1 : libxfont - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 702927
OpenVAS Name: Debian Security Advisory DSA 2927-1 (libxfont - security update
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: cgit.freedesktop.org

Timelineinfo

12/03/2013 🔍
05/12/2014 +160 days 🔍
05/12/2014 +0 days 🔍
05/12/2014 +0 days 🔍
05/13/2014 +1 days 🔍
05/14/2014 +1 days 🔍
05/15/2014 +1 days 🔍
05/15/2014 +0 days 🔍
05/16/2014 +1 days 🔍
06/19/2014 +34 days 🔍
06/19/2021 +2557 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: Bug CVE-201
Researcher: Huzaifa S. Sidhpurwala
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0210 (🔍)
GCVE (CVE): GCVE-0-2014-0210
GCVE (VulDB): GCVE-100-13218

OVAL: 🔍

X-Force: 93145 - libXfont fserve.c buffer overflow, High Risk
SecurityFocus: 67382 - X.Org libXfont Multiple Integer Overflow and Memory Corruption Vulnerabilities
Secunia: 58474 - X.Org libXfont Multiple Vulnerabilities, Less Critical
SecurityTracker: 1030238 - libXfont Buffer Overflows Let Remote and Local Users Execute Arbitrary Code
Vulnerability Center: 45074 - [cpujul2014-1972956] X.Org libXfont before 1.4.8 and 1.4.9x before 1.4.99.901 Remote Code Execution via a Crafted Xfs Protocol Reply, High

See also: 🔍

Entryinfo

Created: 05/16/2014 16:20
Updated: 06/19/2021 15:49
Changes: 05/16/2014 16:20 (85), 05/31/2017 08:55 (6), 06/19/2021 15:49 (3)
Complete: 🔍
Cache ID: 216:FCB:103

Discussion

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