// For flags

CVE-2013-7423

glibc: getaddrinfo() writes DNS queries to random file descriptors under high load

Severity Score

5.0
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The send_dg function in resolv/res_send.c in GNU C Library (aka glibc or libc6) before 2.20 does not properly reuse file descriptors, which allows remote attackers to send DNS queries to unintended locations via a large number of requests that trigger a call to the getaddrinfo function.

La función send_dg en resolv/res_send.c en GNU C Library (también conocido como glibc o libc6) en versiones anteriores a 2.20 no reutiliza adecuadamente descriptores de fichero, lo que permite a atacantes remotos mandar consultas DNS a ubicaciones no intencionadas a través de un gran número de peticiones que desencadenan una llamada a la función getaddrinfo.

It was discovered that, under certain circumstances, glibc's getaddrinfo() function would send DNS queries to random file descriptors. An attacker could potentially use this flaw to send DNS queries to unintended recipients, resulting in information disclosure or data loss due to the application encountering corrupted data.

Many Moxa devices suffer from command injection, cross site scripting, and outdated software vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
Attack Vector
Local
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-01-28 CVE Reserved
  • 2015-02-24 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-10-06 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-17: DEPRECATED: Code
  • CWE-201: Insertion of Sensitive Information Into Sent Data
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
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Enterprise Linux Server Aus
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6.5
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-
Affected
Canonical
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Ubuntu Linux
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10.04
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lts
Affected
Canonical
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Ubuntu Linux
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12.04
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lts
Affected
Canonical
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Ubuntu Linux
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14.04
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lts
Affected
Canonical
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Ubuntu Linux
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14.10
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-
Affected
Opensuse
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Opensuse
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13.1
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Affected
Opensuse
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Opensuse
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13.2
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Affected
Gnu
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Glibc
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< 2.20
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-
Affected