Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"buffer overflow"”.
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Enhancing availability and security through boundless memory blocks
… memory blocks, that automatically eliminates buffer overflow errors, enabling programs to continue to execute through memory errors without memory corruption. Buffer overflow vulnerabilities are caused by programming errors that allow an attacker to cause the program to write beyond the bounds …
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Detecting buffer overflows using testcase synthesis and code instrumentation
… aims to improve existing approaches to dynamic buffer overflow detection by developing a system that utilizes code instrumentation and adaptive test case synthesis to find buffer overflows and corresponding failure-inducing inputs automatically. An evaluation of seven modern dynamic buffer …
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Power and delay trade-offs in fading channels
… such an approach can lead to long delays or buffer overflows. These delays can be reduced but at the expense of higher transmission power. The trade-offs between the required power and various notions of delay are analyzed in this thesis. We consider a user communicating over a fading …
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Securing software : an evaluation of static source code analyzers
… 14 code examples that illustrated actual buffer overflow vulnerabilities found in various versions of Sendmail, BIND, and WU-FTPD. Each code example included a "BAD" case with one or more buffer overflow vulnerabilities and a "PATCHED" case without buffer overflows. The buffer overflows …
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Asymptotic performance of queue length based network control policies
… specify the probability that the delay or buffer occupancy becomes large. An understanding of these metrics is essential for providing worst-case delay guarantees, provisioning buffer sizes in networks, and to estimate the frequency of packet-drops due to buffer overflow. Second, many …
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Automated exploitation of fully randomized executables
… and combining information leakage and buffer overflow vulnerabilities to generate exploits that are robust against defenses, compilation decisions, and environment differences. Marten has generated four control flow hijacking exploits and three information leakage exploits. One of the …
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P-TAXI : enforcing memory safety with programmable tagged architecture
Buffer overflow is a well-known problem that remains a threat to software security. With the advancement of code-reuse attacks and return-oriented programming (ROP), it becomes problematic to protect a program from being compromised. Several defenses have been developed in an attempt to defeat …
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Distributed Algorithms for Resource Allocation in Multi-Hop Random Access Wireless Networks
… to flow-throughput under constraints on the buffer overflow probabilities at each node. We model the end-to-end flows in an ad hoc wireless network using a tandem of finite-size, discrete-time queues, located at the nodes along the routes used by the flows. The proposed scheme requires local …
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TCP/IP stack fingerprinting for patch detection in a distributed Windows environment
… limits itself to classifying DCOM RPC Buffer overflow vulnerabilities on Windows based systems.
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Artificial Intelligence for Android Stealth-Attack Detection: A Digital Forensics Approach
… refer to common C/C++ vulnerabilities, such as buffer overflow and format string vulnerabilities. When these vulnerabilities are exploited, an attacker can have access to the main memory where data is stored in clear text e.g., encryption keys. Over the years, various static and dynamic analysis …
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Single queue priority scheduler for video transmission in IEEE 802.11 networks
… Single-Queue Priority Scheduler algorithm, the buffer overflow loss is 22.8% of the total load, but with SQPS algorithm, it is 8% of the total load. Without SQPS algorithm, the Packet Loss Ratio is about61%; but with the SQPS algorithm, the PLR reduces to 34%. Although, this scheduling algorithm …
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Performance analysis of star architecture packet-switched VSAT networks using random code division multiple access
… size. Then, a discussion of the effect of finite buffer size, and an analysis relating the probability of buffer overflow to packet statistics and buffer size is presented. Because of the bursty nature of a traffic originating from the VSAT’s, the Automatic Repeat Request (ARQ) technique used for …
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Asynchronous hardware-enforced memory safety
Memory corruption attacks, such as buffer overflow attacks, have been threatening software security for more than three decades. Despite tremendous efforts by developers and researchers to prevent programs written in memory-unsafe language (e.g., C/C++) from memory errors (the root cause of memory …
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Modelling adaptive routing in Wide Area Networks
… the network is one with static routing and no buffer overflow. This characteristic, together with a real time modelling requirement, influences the modelling technique which is applied. Each model represents a routing update interval and a multiclass open queueing network is used to solve the …
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Computational Intelligence and Complexity Measures for Chaotic Information Processing
… the scarcity of phase space samples and the buffer overflow problem in algorithmic complexity measure estimation in slow dynamics feedback-controlled systems. It is proved analytically and tested numerically that for a quasiperiodic system like a Fibonacci map, complexity grows …
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Advanced modelling of adaptive bitrate selection
… while on-off chunk scheduling helps to prevent buffer overflow, it negatively affects the TCP throughput. Hence, these complex interactions between these different sub-components of the adaptive streaming algorithm result in unnecessary rebufferings, undesirable variability, and sub-optimal …
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Delay QoS Provisioning and Optimal Resource Allocation for Wireless Networks
… (QoS) constraints e.g., in terms of delay, buffer overflow or packet drop/loss probabilities, so that acceptable performance levels can be guaranteed for the end-users, especially in delay sensitive scenarios, such as live video transmission, interactive video (e.g., teleconferencing), and …
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Energy efficient organization and modeling of wireless sensor networks
… tradeoffs of delay, measurement accuracy and buffer overflow, for given QoS requirements. The performance of the proposed approach is analyzed and evaluated, through modeling and simulation, under different data aggregation scenarios and traffic loads. The impact of several design parameters …
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On Reducing the Trusted Computing Base in Binary Verification
… for security vulnerabilities. Even a single buffer overflow or use-after-free in a large program may be the cause of a software crash, a data leak, or a hijacking of the control flow. Typical static formal verification tools aim to detect these issues at the source code level. WinCheck is a …
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Nástroj na generování polymorfních síťových útoků
Tato bakalářská práce se zabývá návrhem a tvorbou desktopové GUI aplikace pro generování polymorfních síťových útoků. Vytvořená aplikace implementuje několik technik pro vyhýbání se detekci. Dále umožňuje uživatelovi definovat vlastní techniky. Aplikace pak ve velkém množství zasílá útoky na cíle a …