Title: HP-UX setrlimit() Incorrect Core Processing Vulnerability
Severity: LOW
Description:
HP-UX contains a vulnerability in it's implementation of setrlimit().
The setrlimit() system call permits an administrator to set a maximum amount of allowable resource usage for a process and it's children. One of the limits that can be set is the maximum size of the core file, in bytes, that can be written to disk when the process dumps core.
After a setuid process drops privileges, limits placed on core file generation via setrlimit() are not enforced. If an attacker causes the process to dump core, it will, even if the size is greater than that set as the limit.
An attacker could exploit this to create core files that consume excessive disk space.
It may also be possible to attach to setuid processes that have dropped privileges with a debugger. If this is possible, attackers may be able to read memory contents and access possibly sensitive information. This is not yet verified and may warrant an independent vulnerability database record.
Affected Products:
- HP HP-UX (VVOS) 10.24.0
- HP HP-UX (VVOS) 11.0.4
- HP HP-UX 10.0.01
- HP HP-UX 10.1.0 0
- HP HP-UX 10.20.0
- HP HP-UX 10.26.0
- HP HP-UX 11.0.0
- HP HP-UX 11.11.0
References:
- HP IT Resource Center: HP IT Resource Center (for Europe)
- HP IT Resource Center: HP IT Resource Center (for US, Canada, Asia-Pacific, & Latin-America)
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