CVE-2009-0310 in openSUSE
Summary
by MITRE
Buffer overflow in SUSE blinux (aka sbl) in SUSE openSUSE 10.3 through 11.0 has unknown impact and attack vectors related to "incoming data and authentication-strings."
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Analysis
by VulDB Data Team • 08/28/2019
The vulnerability identified as CVE-2009-0310 represents a critical buffer overflow flaw within the SUSE blinux component, which is part of the SUSE openSUSE 10.3 through 11.0 distributions. This issue specifically affects the handling of incoming data and authentication strings, creating a potential security risk that could be exploited by malicious actors. The buffer overflow occurs when the system processes external input without proper bounds checking, allowing attackers to overwrite adjacent memory locations and potentially execute arbitrary code.
The technical nature of this vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions where insufficient bounds checking allows attackers to write beyond the allocated buffer space. The flaw manifests during the processing of authentication strings and incoming data, suggesting that the vulnerable code path likely handles user input or network communications. This type of vulnerability typically arises when developers fail to validate input length before copying data into fixed-size buffers, creating opportunities for attackers to manipulate program execution flow through carefully crafted input sequences.
From an operational perspective, the impact of this vulnerability extends beyond simple data corruption, as buffer overflows can lead to complete system compromise when exploited successfully. Attackers could leverage this weakness to execute malicious code with the privileges of the affected service or user, potentially gaining unauthorized access to sensitive system resources. The unknown attack vectors and impact levels indicate that the vulnerability may be exploitable through multiple entry points, making it particularly concerning for system administrators who must assess and protect against various potential exploitation scenarios. The vulnerability affects a wide range of SUSE openSUSE versions, suggesting it was likely present in the codebase for an extended period.
Mitigation strategies for CVE-2009-0310 should focus on immediate patching of affected systems, as the vulnerability represents a known security flaw that has been documented for years. System administrators should prioritize updating to patched versions of SUSE openSUSE 10.3 through 11.0, ensuring that all systems are running the latest security patches. Additionally, implementing input validation controls and boundary checking mechanisms can help prevent similar vulnerabilities from occurring in other applications. Network segmentation and access controls should be employed to limit potential attack surfaces, while monitoring systems should be configured to detect unusual authentication attempts or data patterns that might indicate exploitation attempts. The vulnerability's classification under the broader ATT&CK framework would likely map to privilege escalation and execution techniques, emphasizing the need for comprehensive security measures beyond simple patch management. Organizations should also consider implementing intrusion detection systems and regular security assessments to identify and remediate similar vulnerabilities in their infrastructure.