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CVE-2018-15120

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote...

6.5 MediumPublic exploitFix available

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

11.4%Down 3.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Record
CVE-2018-15120
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Record
CVE-2018-15120
Updated
2026-11-02
EUVDEUVD-2018-7002 No score

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Record
EUVD-2018-7002
Updated
2026-11-03
GitHub AdvisoriesGHSA-6gmw-hfp8-7f52 6.5

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote...

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Record
GHSA-6gmw-hfp8-7f52
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-119
Updated
2026-11-02
OSVALPINE-CVE-2018-15120 6.5

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Record
ALPINE-CVE-2018-15120
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 6.5

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Record
CVE-2018-15120
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 6 moreShow less
OSVDEBIAN-CVE-2018-15120 6.5

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Record
DEBIAN-CVE-2018-15120
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-15120 6.5

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Record
UBUNTU-CVE-2018-15120
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2024:10843-1 No score

hexchat-2.14.3-4.4 on GA media

These are all security issues fixed in the hexchat-2.14.3-4.4 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10843-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11148-1 No score

libpango-1_0-0-1.48.10-1.3 on GA media

These are all security issues fixed in the libpango-1_0-0-1.48.10-1.3 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11148-1
Updated
2026-11-02
OSVSUSE-SU-2018:2763-1 No score

Security update for pango

This update for pango fixes the following issues:

Security issue fixed:

  • CVE-2018-15120: Fixed a denial of service when parsing emoji (bsc#1103877)
Record
SUSE-SU-2018:2763-1
Updated
2026-11-02
OSVUSN-3750-1 No score

pango1.0 vulnerability

Jeffrey M. discovered that Pango incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service.

Record
USN-3750-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
pango
Alpine:v3.7
 1.40.8 up to 1.40.14-r1
1.40.14-r1
pango
Alpine:v3.8
 1.40.8 up to 1.40.14-r1
1.40.14-r1
pango1.0
Debian:12
 before 1.42.4-1
1.42.4-1
pango1.0
Debian:13
 before 1.42.4-1
1.42.4-1
pango1.0
Debian:14
 before 1.42.4-1
1.42.4-1
pango
SUSE:Linux Enterprise Module for Basesystem 15
 before 1.40.14-3.3.1
1.40.14-3.3.1
pango
SUSE:Linux Enterprise Module for Desktop Applications 15
 before 1.40.14-3.3.1
1.40.14-3.3.1
pango1.0
Ubuntu:18.04:LTS
 before 1.40.14-1ubuntu0.1, plus listed versions
1.40.12-11.40.13-21.40.14-1
1.40.14-1ubuntu0.1
hexchat
openSUSE:Tumbleweed
 before 2.14.3-4.4
2.14.3-4.4

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBLibpango 1.40.8 - Denial of Service (PoC)2018-08-27

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-15120 is a medium vulnerability (CVSS 6.5) in Gnome Pango, published August 22, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 11.4%, the 96th percentile. Fixed in pango 1.40.14-r1.

References

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