CVE-2019-1010238 Memory corruption in Pango

Critical 9.8 Published 19 Jul 2019 Updated 5 Aug 2024

A heap-based buffer overflow in Gnome Pango allows attackers to execute arbitrary code by passing invalid UTF-8 strings to text processing functions.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2019-1010238?

CVE-2019-1010238 is a critical memory corruption vulnerability in Canonical Ubuntu Linux, published on 19 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Gnome Pango 1.42 and later is affected by: Buffer Overflow. The impact is: The heap based buffer overflow can be used to get code execution. The component is: function name: pango_log2vis_get_embedding_levels, assignment of nchars and the loop condition. The attack vector is: Bug can be used when application pass invalid utf-8 strings to functions like pango_itemize.

Weakness: CWE-787

Which versions are affected by CVE-2019-1010238?

It affects 13 products.

Linux distribution packages (29)

`pango` Red Hat:enterprise_linux:7::client	All versions	`0:1.42.4-4.el7_7`
`pango-debuginfo` Red Hat:enterprise_linux:7::client	All versions	`0:1.42.4-4.el7_7`
`pango-devel` Red Hat:enterprise_linux:7::client	All versions	`0:1.42.4-4.el7_7`
`pango-tests` Red Hat:enterprise_linux:7::client	All versions	`0:1.42.4-4.el7_7`
`pango` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.42.4-4.el7_7`
`pango-debuginfo` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.42.4-4.el7_7`
`pango-devel` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.42.4-4.el7_7`
`pango-tests` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.42.4-4.el7_7`
`pango` Red Hat:enterprise_linux:7::server	All versions	`0:1.42.4-4.el7_7`
`pango-debuginfo` Red Hat:enterprise_linux:7::server	All versions	`0:1.42.4-4.el7_7`
`pango-devel` Red Hat:enterprise_linux:7::server	All versions	`0:1.42.4-4.el7_7`
`pango-tests` Red Hat:enterprise_linux:7::server	All versions	`0:1.42.4-4.el7_7`
`pango` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.42.4-4.el7_7`
`pango-debuginfo` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.42.4-4.el7_7`
`pango-devel` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.42.4-4.el7_7`
`pango-tests` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.42.4-4.el7_7`
`pango` Red Hat:enterprise_linux:8::appstream	All versions	`0:1.42.4-5.el8_0`
`pango-debuginfo` Red Hat:enterprise_linux:8::appstream	All versions	`0:1.42.4-5.el8_0`
`pango-debugsource` Red Hat:enterprise_linux:8::appstream	All versions	`0:1.42.4-5.el8_0`
`pango-devel` Red Hat:enterprise_linux:8::appstream	All versions	`0:1.42.4-5.el8_0`
`pango-tests-debuginfo` Red Hat:enterprise_linux:8::appstream	All versions	`0:1.42.4-5.el8_0`
`pango` Red Hat:rhel_eus:7.6::computenode	All versions	`0:1.42.4-3.el7_6`
`pango-debuginfo` Red Hat:rhel_eus:7.6::computenode	All versions	`0:1.42.4-3.el7_6`
`pango-devel` Red Hat:rhel_eus:7.6::computenode	All versions	`0:1.42.4-3.el7_6`
`pango-tests` Red Hat:rhel_eus:7.6::computenode	All versions	`0:1.42.4-3.el7_6`
`pango` Red Hat:rhel_eus:7.6::server	All versions	`0:1.42.4-3.el7_6`
`pango-debuginfo` Red Hat:rhel_eus:7.6::server	All versions	`0:1.42.4-3.el7_6`
`pango-devel` Red Hat:rhel_eus:7.6::server	All versions	`0:1.42.4-3.el7_6`
`pango-tests` Red Hat:rhel_eus:7.6::server	All versions	`0:1.42.4-3.el7_6`

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Gnome Pango, Oracle Sd-Wan Edge, Redhat Enterprise Linux and 7 more.

How do I fix CVE-2019-1010238?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-1010238 being exploited?

There is no known exploitation of CVE-2019-1010238 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2019-1010238, AZL-110504, DEBIAN-CVE-2019-1010238, DSA-4496-1, GHSA-wwvc-98fq-c42m, JLSEC-2026-455 and 4 more.