A vulnerability in the create_elf_tables function of the Linux Kernel could allow a local attacker to gain elevated privileges on a targeted system.
The vulnerability is due to an integer overflow condition that exists in the create_elf_tables function of the affected software. An attacker with access to a set-user-ID(SUID) root-level binary could exploit this vulnerability to gain root privileges on a targeted system. A successful exploit could result in a complete system compromise.
Proof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available.
Kernel.org has not confirmed the vulnerability, and software updates are not available.
To exploit this vulnerability, the attacker must have user-level access to the targeted system. This access requirement may reduce the likelihood of a successful exploit.
This vulnerability affects Linux Kernel with commit b6a2fea39318 ("mm: variable length argumentsupport," from July 19, 2007) but without commit da029c11e6b1 ("exec: Limit arg stack to at most 75% of _STK_LIM," from July 7, 2017) running on a system with greater than 32 GB of RAM.
Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to access local systems.
Administrators are advised to allow only privileged users to access administration or management systems.
Administrators are advised to monitor critical systems.
At the time this alert was first published, Kernel.org had not released a security announcement.
At the time this alert was first published, Kernel.org had not released software updates.
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Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.