Address Space Layout Randomization is a very effective mitigation technique. The first implementation was done by the PaX team in 2001, and since then it has been the most advanced and secure. We have analyzed the PaX an Linux implementations, and found several weaknesses. We have carried out a deep review and analysis of all constraints that determine ASLR operation. Based on these results we ...

Studies in automatic sign language recognition (ASLR) have mainly focused on data-driven methods (see [1]). Little attention has been paid to the perception of sign language and how knowledge from this field can improve ASLR. In part, this is because the field of sign perceptual research itself is quite young, and knowledge is far from complete. However, recent studies ([2]) have yielded result...

Current automatic sign language recognition (ASLR) seldom uses perceptual knowledge about the recognition of sign language. Using such knowledge can improve ASLR because it can give an indication which elements or phases of a sign are important for its meaning. Also, the current generation of data-driven ASLR methods has shortcomings which may not be solvable without the use of knowledge on hum...

STUDY DESIGN Repeated measures. OBJECTIVE To investigate motor control (MC) patterns of normal subjects during the low level physical load of the active straight leg raise (ASLR). SUMMARY OF BACKGROUND DATA Aberrant MC patterns, as observed with the ASLR test, are considered to be a mechanism for ongoing pain and disability in subjects with chronic musculoskeletal pelvic girdle pain. These ...

Research on automatic sign language recognition (ASLR) has mostly been conducted from a machine learning perspective. We propose to implement results from human sign recognition studies in ASLR. In a previous study it was found that handshape is important for human sign recognition. The current paper describes the implementation of this conclusion: using handshape in ASLR. Handshape information...

STUDY DESIGN A cross-sectional analysis was performed in a group of women meeting strict criteria for posterior pelvic pain since pregnancy (PPPP). The scores on the Active Straight Leg Raise Test (ASLR test) were compared with the scores of healthy controls. OBJECTIVES To develop a new diagnostic instrument for use in patients with PPPP. The objectives of the present study were to assess the...

Address-Space Layout Randomization (ASLR) is a technique used to thwart attacks which relies on knowing the location of the target code or data. The effectiveness of ASLR hinges on the entirety of the address space layout remaining unknown to the attacker. Only executables compiled as Position Independent Executable (PIE) can obtain the maximum protection from the ASLR technique since all the s...

Address space layout randomization (ASLR) is an important first line of defense against memory corruption attacks and a building block for many modern countermeasures. Existing attacks against ASLR rely on software vulnerabilities and/or on repeated (and detectable) memory probing. In this paper, we show that neither is a hard requirement and that ASLR is fundamentally insecure on modern cacheb...

Fine-grained address space layout randomization has recently been proposed as a method of efficiently mitigating ROP attacks. In this paper, we introduce a design and implementation of a framework based on a runtime strategy that undermines the benefits of fine-grained ASLR. Specifically, we abuse a memory disclosure to map an application’s memory layout on-the-fly, dynamically discover gadgets...