High
Security advisory
In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user's password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-20781
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:10 UTC · Revision 1
Source evidence
In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user's password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext.
osv:CVE-2018-20781
Complete source record
{
"id": "2e832a319c1b9f03f19c068c67a5176b48f96dfba00ea5a89a1325e06fc22444",
"url": "https://osv.dev/vulnerability/CVE-2018-20781",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-20781",
"summary": "In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user's password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext.",
"evidence": "osv:CVE-2018-20781",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-20781",
"aliases": [
"CVE-2018-20781"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://gitlab.gnome.org/gnome/gnome-keyring",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "7b2f96bfaa3fc0a1af5ab0402f3f689f834f8cb0"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:gnome:gnome_keyring:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.27.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"3.20.0",
"3.19.90",
"3.19.4",
"3.18.3",
"3.18.2",
"3.18.1",
"3.18.0",
"3.17.91",
"3.17.4",
"0.17.4",
"3.16.0",
"3.15.92",
"3.14.0",
"3.15.90",
"3.13.91",
"3.12.2",
"3.12.0",
"3.11.92",
"3.10.1",
"3.10.0",
"3.9.90",
"3.9.1",
"3.8.1",
"3.8.0",
"3.7.92",
"3.7.91",
"3.7.5",
"3.7.2",
"3.6.1",
"3.7.1",
"3.6.0",
"3.5.92",
"3.5.91",
"3.5.90",
"3.5.5",
"3.5.4",
"3.5.3",
"3.4.0",
"3.3.92",
"3.3.91",
"3.3.5",
"3.3.4",
"3.3.3.1",
"3.3.3",
"3.3.2",
"3.3.1.1",
"3.3.1",
"3.1.92",
"3.1.91",
"3.1.90",
"3.1.4",
"3.1.1",
"2.91.91",
"2.91.4",
"2.91.3",
"2.91.2",
"GNOME_KEYRING_2_91_1",
"GNOME_KEYRING_2_91_0",
"GNOME_KEYRING_2_32_0",
"GNOME_KEYRING_2_31_92",
"GNOME_KEYRING_2_31_91",
"GNOME_KEYRING_2_31_4",
"GNOME_KEYRING_2_30_1",
"GNOME_KEYRING_2_30_0",
"GNOME_KEYRING_2_29_92",
"GNOME_KEYRING_2_29_90",
"GNOME_KEYRING_2_29_5",
"GNOME_KEYRING_2_29_4",
"GNOME_KEYRING_2_28_2",
"GNOME_KEYRING_2_28_1",
"GNOME_KEYRING_2_28_0",
"GNOME_KEYRING_2_27_92",
"GNOME_KEYRING_2_27_90",
"GNOME_KEYRING_2_27_5",
"GNOME_KEYRING_2_27_4",
"GNOME_KEYRING_2_26_0",
"GNOME_KEYRING_2_25_92",
"GNOME_KEYRING_2_25_91",
"GNOME_KEYRING_2_25_90",
"GNOME_KEYRING_2_25_5",
"GNOME_KEYRING_2_25_4_2",
"GNOME_KEYRING_2_25_4_1",
"GNOME_KEYRING_2_25_4",
"GNOME_KEYRING_2_25_2",
"GNOME_KEYRING_2_25_1",
"GNOME_KEYRING_2_24_1",
"GNOME_KEYRING_2_24_0",
"GNOME_KEYRING_2_23_92",
"GNOME_KEYRING_2_3_91",
"GNOME_KEYRING_2_23_5",
"GNOME_KEYRING_2_22_2",
"GNOME_KEYRING_2_22_1",
"GNOME_KEYRING_2_22_0",
"GNOME_KEYRING_2_21_92",
"GNOME_KEYRING_2_21_91",
"GNOME_KEYRING_2_21_90",
"GNOME_KEYRING_2_21_5",
"GNOME_KEYRING_2_21_4",
"GNOME_KEYRING_2_21_3_2",
"GNOME_KEYRING_2_21_3_1",
"GNOME_KEYRING_2_21_3",
"GNOME_KEYRING_2_20_1",
"GNOME_KEYRING_2_20",
"GNOME_KEYRING_2_19_91",
"GNOME_KEYRING_2_19_90",
"GNOME_KEYRING_2_19_6_1",
"GNOME_KEYRING_2_19_5",
"GNOME_KEYRING_2_19_4_1",
"GNOME_KEYRING_2_19_4",
"GNOME_KEYRING_0_8",
"GNOME_KEYRING_0_7_92",
"GNOME_KEYRING_0_7_91",
"GNOME_KEYRING_0_7_3",
"GNOME_KEYRING_0_7_2",
"GNOME_KEYRING_0_7_1",
"GNOME_2_16_BRANCHPOINT",
"GNOME_KEYRING_0_6_0",
"GNOME_KEYRING_0_5_2",
"GNOME_KEYRING_0_5_1",
"GNOME_2_14_BRANCHPOINT",
"GNOME_KEYRING_0_4_9",
"GNOME_KEYRING_0_4_8",
"GNOME_KEYRING_0_4_7",
"GNOME_KEYRING_0_4_6",
"GNOME_2_12_BRANCHPOINT",
"GNOME_KEYRING_0_4_5",
"GNOME_KEYRING_0_4_4",
"GNOME_KEYRING_0_4_3",
"GNOME_KEYRING_0_4_2",
"GNOME_KEYRING_0_4_1",
"GNOME_KEYRING_0_4_0",
"GNOME_KEYRING_0_3_3",
"GNOME_KEYRING_0_3_2",
"GNOME_KEYRING_0_3_1",
"GNOME_2_6_BRANCHPOINT",
"GNOME_KEYRING_0_2_1",
"GNOME_KEYRING_0_2_0",
"GNOME_KEYRING_0_1_91",
"GNOME_KEYRING_0_1_90",
"GNOME_KEYRING_0_1_4",
"GNOME_KEYRING_0_1_3",
"GNOME_KEYRING_0_1",
"initial_import"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20781.json"
}
}
],
"modified": "2026-10-20T10:49:55.841011136Z",
"provider": "osv",
"references": [
"https://github.com/huntergregal/mimipenguin",
"https://github.com/huntergregal/mimipenguin/tree/d95f1e08ce79783794f38433bbf7de5abd9792da",
"https://gitlab.gnome.org/GNOME/gnome-keyring/issues/3",
"https://gitlab.gnome.org/GNOME/gnome-keyring/tags/3.27.2",
"https://usn.ubuntu.com/3894-1/",
"https://www.oracle.com/security-alerts/cpujan2021.html",
"https://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/1772919",
"https://bugzilla.gnome.org/show_bug.cgi?id=781486"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:zfs_storage_appliance_kit",
"extracted_events": [
{
"range": [
{
"introduced": "8.8"
},
{
"last_affected": "8.8"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-20781",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 380993,
"published_at": "2019-02-12T17:29:00.243+00:00"
}