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CVE-2019-18197

Published: 18 October 2019

In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
libxslt
Launchpad, Ubuntu, Debian
bionic
Released (1.1.29-5ubuntu0.2)
disco
Released (1.1.32-2ubuntu0.2)
eoan
Released (1.1.33-0ubuntu1.1)
trusty
Released (1.1.28-2ubuntu0.2+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream Needs triage

xenial
Released (1.1.28-2.1ubuntu0.3)
Patches:
upstream: https://gitlab.gnome.org/GNOME/libxslt/commit/2232473733b7313d67de8836ea3b29eec6e8e285

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H