GNU C Library 2.16 numeric error

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

A vulnerability was found in GNU C Library 2.16 (Software Library). It has been declared as problematic. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Multiple integer overflows in the (1) strtod, (2) strtof, (3) strtold, (4) strtod_l, and other unspecified "related functions" in stdlib in GNU C Library (aka glibc or libc6) 2.16 allow local users to cause a denial of service (application crash) and possibly execute arbitrary code via a long string, which triggers a stack-based buffer overflow.

The issue has been introduced in 06/30/2012. The weakness was disclosed 08/25/2012 (Website). The advisory is shared for download at securitytracker.com. This vulnerability was named CVE-2012-3480 since 06/14/2012. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 56 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 69610 (Amazon Linux AMI : glibc (ALAS-2012-120)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216049 (VMWare ESXi 5.1.0 Patch Complete Update 1 Missing (KB2041632)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (77692) and Tenable (69610). The entries 4619, 4675, 4996 and 5407 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.9
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: 🔍

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 69610
Nessus Name: Amazon Linux AMI : glibc (ALAS-2012-120)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 71983
OpenVAS Name: Slackware Advisory SSA:2012-244-01 glibc
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/14/2012 🔍
06/30/2012 +16 days 🔍
08/13/2012 +44 days 🔍
08/13/2012 +0 days 🔍
08/13/2012 +0 days 🔍
08/14/2012 +1 days 🔍
08/25/2012 +11 days 🔍
08/25/2012 +0 days 🔍
09/02/2012 +8 days 🔍
09/04/2013 +367 days 🔍
03/23/2015 +565 days 🔍
12/12/2021 +2456 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: RHSA-2012:1208⛔
Status: Confirmed

CVE: CVE-2012-3480 (🔍)
OVAL: 🔍

X-Force: 77692
SecurityTracker: 1027374 - Glibc stdlib Buffer Overflows May Let Local Users Gain Elevated Privileges
Vulnerability Center: 36036 - GNU C Library 2.16 Local DoS or Arbitrary Code Execution Vulnerability via a Long String, Medium
SecurityFocus: 54982 - GNU glibc Multiple Local Stack Buffer Overflow Vulnerabilities
Secunia: 50201 - GNU C Library stdlib Functions Integer Overflow Weaknesses, Not Critical
OSVDB: 84710

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/12/2021 11:30
Changes: 03/23/2015 16:50 (68), 04/16/2017 11:16 (19), 12/12/2021 11:16 (3), 12/12/2021 11:23 (1), 12/12/2021 11:30 (2)
Complete: 🔍

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