CVE-2011-3581: nlnetlabs ldns

Vulnerability summary

CVE-2011-3581 is a medium (CVSS 6.8) vulnerability in nlnetlabs ldns. EPSS estimates a 4.11% chance of exploitation in the next 30 days, higher than 90.6% of scored vulnerabilities.

Timeline

1. 04-11-2011
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before 1.6.11 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Resource Record (RR) with an unknown type containing input that is longer than a specified length.

• 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.