Augeas versions up to and including 1.8.0 are vulnerable to heap-based buffer overflow due to improper handling of escaped strings. Attacker could send crafted strings that would cause the application using augeas to copy past the end of a buffer, leading to a crash or possible code execution.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://puppet.com/security/cve/cve-2017-7555 | |
| http://www.securityfocus.com/bid/100378 | vdb entry third party advisory |
| https://access.redhat.com/errata/RHSA-2017:2788 | vendor advisory |
| https://github.com/hercules-team/augeas/pull/480 | third party advisory |
| http://www.debian.org/security/2017/dsa-3949 | vendor advisory |
| https://access.redhat.com/errata/RHSA-2019:2403 | vendor advisory |