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CVE-2007-3731

N/A
Published: September 17, 2007 at 05:00 PM UTC
Updated: June 16, 2026 at 10:42 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.5%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (18)

x_refsource_MISCExploit
Source: [email protected]
http://bugzilla.kernel.org/show_bug.cgi?id=8765
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f
VDB Entryx_refsource_OSVDB
Source: [email protected]
http://osvdb.org/37286
Third Party Advisoryx_refsource_SECUNIA
Source: [email protected]
http://secunia.com/advisories/26935
Third Party Advisoryx_refsource_SECUNIA
Source: [email protected]
http://secunia.com/advisories/26955
Third Party Advisoryx_refsource_SECUNIA
Source: [email protected]
http://secunia.com/advisories/26978
Third Party Advisoryx_refsource_SECUNIA
Source: [email protected]
http://secunia.com/advisories/27322

CVSS

4.9MEDIUM[email protected]
Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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