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Vulnerability Details : CVE-2011-1089

The addmntent function in the GNU C Library (aka glibc or libc6) 2.13 and earlier does not report an error status for failed attempts to write to the /etc/mtab file, which makes it easier for local users to trigger corruption of this file, as demonstrated by writes from a process with a small RLIMIT_FSIZE value, a different vulnerability than CVE-2010-0296.
Publish Date : 2011-04-09 Last Update Date : 2012-01-18
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- CVSS Scores & Vulnerability Types

CVSS Score
3.3
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 16

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low
3.3
AV:L/AC:M/Au:N/C:P/I:P/A:N 2011-03-01 2011-03-03
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-1089 oval:org.opensuse.security:def:20111089 unix
ELSA-2012:0126: glibc security update (Moderate) oval:org.mitre.oval:def:22910 unix
RHSA-2012:0125: glibc security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20120125 unix
RHSA-2012:0126: glibc security update (Moderate) oval:org.mitre.oval:def:21365 unix
RHSA-2012:0126: glibc security update (Moderate) oval:com.redhat.rhsa:def:20120126 unix
VMware vSphere and vCOps updates to third party libraries oval:org.mitre.oval:def:20507 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-1089

# Product Type Vendor Product Version Update Edition Language
1 Application GNU Glibc 1.00 Version Details Vulnerabilities
2 Application GNU Glibc 1.01 Version Details Vulnerabilities
3 Application GNU Glibc 1.02 Version Details Vulnerabilities
4 Application GNU Glibc 1.03 Version Details Vulnerabilities
5 Application GNU Glibc 1.04 Version Details Vulnerabilities
6 Application GNU Glibc 1.05 Version Details Vulnerabilities
7 Application GNU Glibc 1.06 Version Details Vulnerabilities
8 Application GNU Glibc 1.07 Version Details Vulnerabilities
9 Application GNU Glibc 1.08 Version Details Vulnerabilities
10 Application GNU Glibc 1.09 Version Details Vulnerabilities
11 Application GNU Glibc 1.09.1 Version Details Vulnerabilities
12 Application GNU Glibc 2.0 Version Details Vulnerabilities
13 Application GNU Glibc 2.0.1 Version Details Vulnerabilities
14 Application GNU Glibc 2.0.2 Version Details Vulnerabilities
15 Application GNU Glibc 2.0.3 Version Details Vulnerabilities
16 Application GNU Glibc 2.0.4 Version Details Vulnerabilities
17 Application GNU Glibc 2.0.5 Version Details Vulnerabilities
18 Application GNU Glibc 2.0.6 Version Details Vulnerabilities
19 Application GNU Glibc 2.1 Version Details Vulnerabilities
20 Application GNU Glibc 2.1.1 Version Details Vulnerabilities
21 Application GNU Glibc 2.1.1.6 Version Details Vulnerabilities
22 Application GNU Glibc 2.1.2 Version Details Vulnerabilities
23 Application GNU Glibc 2.1.3 Version Details Vulnerabilities
24 Application GNU Glibc 2.1.3.10 Version Details Vulnerabilities
25 Application GNU Glibc 2.1.9 Version Details Vulnerabilities
26 Application GNU Glibc 2.2 Version Details Vulnerabilities
27 Application GNU Glibc 2.2.1 Version Details Vulnerabilities
28 Application GNU Glibc 2.2.2 Version Details Vulnerabilities
29 Application GNU Glibc 2.2.3 Version Details Vulnerabilities
30 Application GNU Glibc 2.2.4 Version Details Vulnerabilities
31 Application GNU Glibc 2.2.5 Version Details Vulnerabilities
32 Application GNU Glibc 2.3 Version Details Vulnerabilities
33 Application GNU Glibc 2.3.1 Version Details Vulnerabilities
34 Application GNU Glibc 2.3.2 Version Details Vulnerabilities
35 Application GNU Glibc 2.3.3 Version Details Vulnerabilities
36 Application GNU Glibc 2.3.4 Version Details Vulnerabilities
37 Application GNU Glibc 2.3.5 Version Details Vulnerabilities
38 Application GNU Glibc 2.3.6 Version Details Vulnerabilities
39 Application GNU Glibc 2.3.10 Version Details Vulnerabilities
40 Application GNU Glibc 2.4 Version Details Vulnerabilities
41 Application GNU Glibc 2.5 Version Details Vulnerabilities
42 Application GNU Glibc 2.5.1 Version Details Vulnerabilities
43 Application GNU Glibc 2.6 Version Details Vulnerabilities
44 Application GNU Glibc 2.6.1 Version Details Vulnerabilities
45 Application GNU Glibc 2.7 Version Details Vulnerabilities
46 Application GNU Glibc 2.8 Version Details Vulnerabilities
47 Application GNU Glibc 2.9 Version Details Vulnerabilities
48 Application GNU Glibc 2.10 Version Details Vulnerabilities
49 Application GNU Glibc 2.10.1 Version Details Vulnerabilities
50 Application GNU Glibc 2.10.2 Version Details Vulnerabilities
51 Application GNU Glibc 2.11 Version Details Vulnerabilities
52 Application GNU Glibc 2.11.1 Version Details Vulnerabilities
53 Application GNU Glibc 2.11.2 Version Details Vulnerabilities
54 Application GNU Glibc 2.11.3 Version Details Vulnerabilities
55 Application GNU Glibc 2.12.0 Version Details Vulnerabilities
56 Application GNU Glibc 2.12.1 Version Details Vulnerabilities
57 Application GNU Glibc 2.12.2 Version Details Vulnerabilities
58 Application GNU Glibc 2.13 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
GNU Glibc 58

- References For CVE-2011-1089

https://bugzilla.redhat.com/show_bug.cgi?id=688980
http://openwall.com/lists/oss-security/2011/03/04/10
MLIST [oss-security] 20110304 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/04/11
MLIST [oss-security] 20110303 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/04/12
MLIST [oss-security] 20110304 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/04/9
MLIST [oss-security] 20110303 Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/05/3
MLIST [oss-security] 20110305 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/05/7
MLIST [oss-security] 20110305 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/07/9
MLIST [oss-security] 20110307 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/14/16
MLIST [oss-security] 20110314 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/14/5
MLIST [oss-security] 20110314 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://www.mandriva.com/security/advisories?name=MDVSA-2011:178
MANDRIVA MDVSA-2011:178
http://sourceware.org/bugzilla/show_bug.cgi?id=12625
http://openwall.com/lists/oss-security/2011/04/01/2
MLIST [oss-security] 20110401 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/31/4
MLIST [oss-security] 20110331 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/31/3
MLIST [oss-security] 20110331 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/22/6
MLIST [oss-security] 20110322 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/22/4
MLIST [oss-security] 20110322 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://www.securityfocus.com/bid/46740
BID 46740 GNU glibc 'addmntent()' Mount Helper Local Denial of Service Vulnerability Release Date:2014-02-13
http://www.redhat.com/support/errata/RHSA-2011-1526.html
REDHAT RHSA-2011:1526
http://openwall.com/lists/oss-security/2011/03/14/7
MLIST [oss-security] 20110314 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://openwall.com/lists/oss-security/2011/03/15/6
MLIST [oss-security] 20110315 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
http://www.mandriva.com/security/advisories?name=MDVSA-2011:179
MANDRIVA MDVSA-2011:179

- Metasploit Modules Related To CVE-2011-1089

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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