CVE-2007-3731 : Detail

CVE-2007-3731

A03-Injection
0.04%V4
Local
2007-09-17
15h00 +00:00
2018-10-15
18h57 +00:00
CVE.org
NVD
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CVE Descriptions

The Linux kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (the xcs field) during ptrace single-step operations, which allows local users to cause a denial of service (NULL dereference and OOPS) via certain code that makes ptrace PTRACE_SETREGS and PTRACE_SINGLESTEP requests, related to the TRACE_IRQS_ON function, and possibly related to the arch_ptrace function.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-20 Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C nvd@nist.gov

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

Products Mentioned

Configuraton 0

Linux>>Linux_kernel >> Version 2.6.20

Linux>>Linux_kernel >> Version 2.6.21

References

http://www.securityfocus.com/bid/25801
Tags : vdb-entry, x_refsource_BID
http://osvdb.org/37286
Tags : vdb-entry, x_refsource_OSVDB
http://www.redhat.com/support/errata/RHSA-2007-0940.html
Tags : vendor-advisory, x_refsource_REDHAT
http://secunia.com/advisories/29159
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/27322
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/26978
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.ubuntu.com/usn/usn-518-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://secunia.com/advisories/26955
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/26935
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.debian.org/security/2007/dsa-1378
Tags : vendor-advisory, x_refsource_DEBIAN