CVE-2017-7555: augeas Heap-based Buffer Overflow

Vulnerability summary

CVE-2017-7555 is a critical (CVSS 9.8) Heap-based Buffer Overflow vulnerability in augeas. EPSS estimates a 5.20% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities.

Timeline

1. 17-08-2017
   PublishedVulnerability first disclosed.
2. 17-09-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-122Heap-based Buffer OverflowA 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().
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe 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.