Out-of-bounds Read Affecting ldns package, versions <1.6.17-8ubuntu0.1+esm1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.27% (68th percentile)

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  • Snyk IDSNYK-UBUNTU1604-LDNS-2356851
  • published22 Jan 2022
  • disclosed21 Jan 2022

Introduced: 21 Jan 2022

CVE-2020-19860  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 ldns to version 1.6.17-8ubuntu0.1+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ldns package and not the ldns package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload.

CVSS Scores

version 3.1