5.0
MEDIUM
CVE-2014-6040
GNU C Library (glibc) Out-of-Bounds Read Denial of Service (DoS)
Description

GNU C Library (aka glibc) before 2.20 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via a multibyte character value of "0xffff" to the iconv function when converting (1) IBM933, (2) IBM935, (3) IBM937, (4) IBM939, or (5) IBM1364 encoded data to UTF-8.

INFO

Published Date :

Dec. 5, 2014, 4:59 p.m.

Last Modified :

Feb. 13, 2023, 12:42 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

10.0
Affected Products

The following products are affected by CVE-2014-6040 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gnu glibc

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2014-6040 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2014-6040 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 13, 2023

    Action Type Old Value New Value
    Changed Description An out-of-bounds read flaw was found in the way glibc's iconv() function converted certain encoded data to UTF-8. An attacker able to make an application call the iconv() function with a specially crafted argument could use this flaw to crash that application. GNU C Library (aka glibc) before 2.20 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via a multibyte character value of "0xffff" to the iconv function when converting (1) IBM933, (2) IBM935, (3) IBM937, (4) IBM939, or (5) IBM1364 encoded data to UTF-8.
    Removed CVSS V2 Red Hat, Inc. (AV:L/AC:L/Au:N/C:N/I:N/A:P)
    Removed Reference https://access.redhat.com/errata/RHSA-2015:0016 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2015:0327 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2014-6040 [No Types Assigned]
    Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=1135841 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description GNU C Library (aka glibc) before 2.20 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via a multibyte character value of "0xffff" to the iconv function when converting (1) IBM933, (2) IBM935, (3) IBM937, (4) IBM939, or (5) IBM1364 encoded data to UTF-8. An out-of-bounds read flaw was found in the way glibc's iconv() function converted certain encoded data to UTF-8. An attacker able to make an application call the iconv() function with a specially crafted argument could use this flaw to crash that application.
    Added CVSS V2 Red Hat, Inc. (AV:L/AC:L/Au:N/C:N/I:N/A:P)
    Removed Reference https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=41488498b6 [Exploit]
    Added Reference https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=41488498b6 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2015:0016 [No Types Assigned]
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1135841 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2015:0327 [No Types Assigned]
    Added Reference https://access.redhat.com/security/cve/CVE-2014-6040 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 03, 2017

    Action Type Old Value New Value
    Added Reference http://secunia.com/advisories/62146 [No Types Assigned]
    Added Reference http://secunia.com/advisories/62100 [No Types Assigned]
    Added Reference http://linux.oracle.com/errata/ELSA-2015-0016.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 03, 2016

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201602-02
  • Modified Analysis by [email protected]

    Mar. 17, 2015

    Action Type Old Value New Value
    Changed Reference Type http://www.debian.org/security/2015/dsa-3142 No Types Assigned http://www.debian.org/security/2015/dsa-3142 Advisory
  • CVE Modified by [email protected]

    Mar. 17, 2015

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2015/dsa-3142
  • Initial Analysis by [email protected]

    Dec. 05, 2014

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:gnu:glibc:2.19:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:gnu:glibc:2.1:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.1.1:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.1.1.6:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.1.2:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.1.3:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.1.9:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.10.1:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.11:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.11.1:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.11.2:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.11.3:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.12:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.12.1:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.12.2:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.13:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.14:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.14.1:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.15:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.16:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.17:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.18:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.0:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.0.1:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.0.2:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.0.3:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.0.4:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.0.5:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.0.6:*:*:*:*:*:*:*
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Changed Reference Type https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=41488498b6 No Types Assigned https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=41488498b6 Exploit
    Changed Reference Type http://www.openwall.com/lists/oss-security/2014/09/02/1 No Types Assigned http://www.openwall.com/lists/oss-security/2014/09/02/1 Exploit
    Changed Reference Type https://sourceware.org/bugzilla/show_bug.cgi?id=17325 No Types Assigned https://sourceware.org/bugzilla/show_bug.cgi?id=17325 Exploit
    Changed Reference Type http://ubuntu.com/usn/usn-2432-1 No Types Assigned http://ubuntu.com/usn/usn-2432-1 Advisory, Patch
    Added CWE CWE-119
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.50 }} -0.20%

score

0.87028

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability