CVE-2013-6393: canonical ubuntu_linux

Vulnerability summary

CVE-2013-6393 is a medium (CVSS 6.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 7.39% chance of exploitation in the next 30 days, higher than 94.3% of scored vulnerabilities.

Timeline

1. 06-02-2014
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow.

• 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.