CVE-2018-15120

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.

References

Affected packages

Git / github.com/gnome/pango

Affected ranges

Type

GIT

Repo

https://github.com/gnome/pango

Events

Introduced

0940ddc24f7301f09d945ec44360699ce30859c6

Last affected

67471cbfe24cd4418e9e97837ac85207f0d974de

Fixed

71aaeaf020340412b8d012fe23a556c0420eda5f

Database specific

{
    "versions": [
        {
            "introduced": "1.40.8"
        },
        {
            "last_affected": "1.42.3"
        }
    ]
}

Affected versions

1.*

1.40.10

1.40.11

1.40.12

1.40.13

1.40.14

1.40.8

1.40.9

1.41.0

1.41.1

1.42.0

1.42.1

1.42.2

1.42.3

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "source": "https://github.com/gnome/pango/commit/71aaeaf020340412b8d012fe23a556c0420eda5f",
        "deprecated": false,
        "id": "CVE-2018-15120-94a7ee29",
        "digest": {
            "function_hash": "280634229485122664716075277308058368326",
            "length": 1743.0
        },
        "target": {
            "function": "_pango_emoji_iter_next",
            "file": "pango/pango-emoji.c"
        },
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "source": "https://github.com/gnome/pango/commit/71aaeaf020340412b8d012fe23a556c0420eda5f",
        "deprecated": false,
        "id": "CVE-2018-15120-f82f83a2",
        "digest": {
            "line_hashes": [
                "209976057711671941575069096308863010864",
                "186327902410307932406473741261747817727",
                "243903047219189923930036787420386286732",
                "45389752208727248105783279002597061461"
            ],
            "threshold": 0.9
        },
        "target": {
            "file": "pango/pango-emoji.c"
        },
        "signature_type": "Line"
    }
]

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    }
]

vanir_signatures_modified

"2026-04-11T12:27:39Z"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-15120.json"