CVE-2020-25669
- Source
- https://cve.org/CVERecord?id=CVE-2020-25669
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-25669.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-25669
- Downstream
- Related
- Published
- 2021-05-26T12:15:15.743Z
- Modified
- 2026-04-16T00:05:10.042243322Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A vulnerability was found in the Linux Kernel where the function sunkbdreinit having been scheduled by sunkbdinterrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbddisconnect, there is still an alias in sunkbdreinit causing Use After Free.
- Database specific
{ "unresolved_ranges": [ { "source": "CPE_FIELD", "extracted_events": [ { "last_affected": "9.0" } ], "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*" }, { "source": "CPE_FIELD", "extracted_events": [ { "fixed": "4.4.245" }, { "introduced": "4.5" }, { "fixed": "4.9.245" }, { "introduced": "4.10" }, { "fixed": "4.14.208" }, { "introduced": "4.15" }, { "fixed": "4.19.159" }, { "introduced": "4.20" }, { "fixed": "5.4.79" }, { "introduced": "5.5" }, { "fixed": "5.9.10" } ], "cpe": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*" } ] }- References
-
- https://www.openwall.com/lists/oss-security/2020/11/05/2%2C
- https://www.openwall.com/lists/oss-security/2020/11/20/5%2C
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
- https://security.netapp.com/advisory/ntap-20210702-0006/
- https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e
- http://www.openwall.com/lists/oss-security/2020/11/05/2
- http://www.openwall.com/lists/oss-security/2020/11/20/5
Affected packages
Git / github.com/torvalds/linux
Affected versions
v2.*
v2.6.12-rc2
v2.6.12-rc3
v2.6.12-rc4
v2.6.13
v2.6.13-rc1
v2.6.13-rc2
v2.6.13-rc3
v2.6.13-rc4
v2.6.13-rc5
v2.6.13-rc6
v2.6.13-rc7
v2.6.14-rc1
v2.6.14-rc2
v2.6.14-rc3
v2.6.15-rc1
v2.6.15-rc2
v2.6.15-rc4
v2.6.15-rc5
v2.6.15-rc7
v2.6.16
v2.6.16-rc1
v2.6.16-rc2
v2.6.16-rc3
v2.6.16-rc4
v2.6.16-rc5
v2.6.16-rc6
v2.6.17
v2.6.17-rc1
v2.6.17-rc2
v2.6.17-rc3
v2.6.17-rc4
v2.6.17-rc5
v2.6.17-rc6
v2.6.18
v2.6.18-rc1
v2.6.18-rc2
v2.6.18-rc3
v2.6.18-rc5
v2.6.18-rc6
v2.6.19-rc1
v2.6.19-rc2
v2.6.20-rc1
v2.6.20-rc2
v2.6.20-rc3
v2.6.20-rc4
v2.6.20-rc5
v2.6.20-rc6
v2.6.20-rc7
v2.6.21
v2.6.21-rc1
v2.6.21-rc2
v2.6.21-rc3
v2.6.21-rc4
v2.6.21-rc5
v2.6.21-rc6
v2.6.21-rc7
v2.6.22
v2.6.22-rc1
v2.6.22-rc2
v2.6.22-rc3
v2.6.22-rc4
v2.6.22-rc5
v2.6.22-rc6
v2.6.22-rc7
v2.6.23
v2.6.23-rc1
v2.6.23-rc2
v2.6.23-rc3
v2.6.23-rc4
v2.6.23-rc5
v2.6.23-rc6
v2.6.23-rc7
v2.6.23-rc8
v2.6.23-rc9
v2.6.24
v2.6.24-rc1
v2.6.24-rc2
v2.6.24-rc3
v2.6.24-rc4
v2.6.24-rc5
v2.6.24-rc6
v2.6.24-rc7
v2.6.24-rc8
v2.6.25
v2.6.25-rc1
v2.6.25-rc2
v2.6.25-rc3
v2.6.25-rc4
v2.6.25-rc5
v2.6.25-rc6
v2.6.25-rc7
v2.6.25-rc8
v2.6.25-rc9
v2.6.26
v2.6.26-rc1
v2.6.26-rc2
v2.6.26-rc3
v2.6.26-rc4
v2.6.26-rc5
v2.6.26-rc6
v2.6.26-rc7
v2.6.26-rc8
v2.6.26-rc9
v2.6.27
v2.6.27-rc1
v2.6.27-rc2
v2.6.27-rc3
v2.6.27-rc4
v2.6.27-rc5
v2.6.27-rc6
v2.6.27-rc7
v2.6.27-rc8
v2.6.27-rc9
v2.6.28
v2.6.28-rc1
v2.6.28-rc2
v2.6.28-rc3
v2.6.28-rc4
v2.6.28-rc5
v2.6.28-rc6
v2.6.28-rc7
v2.6.28-rc8
v2.6.28-rc9
v2.6.29
v2.6.29-rc1
v2.6.29-rc2
v2.6.29-rc3
v2.6.29-rc4
v2.6.29-rc5
v2.6.29-rc6
v2.6.29-rc7
v2.6.29-rc8
v2.6.30
v2.6.30-rc1
v2.6.30-rc2
v2.6.30-rc3
v2.6.30-rc4
v2.6.30-rc5
v2.6.30-rc6
v2.6.30-rc7
v2.6.30-rc8
v2.6.31
v2.6.31-rc1
v2.6.31-rc2
v2.6.31-rc3
v2.6.31-rc4
v2.6.31-rc5
v2.6.31-rc6
v2.6.31-rc7
v2.6.31-rc8
v2.6.31-rc9
v2.6.32
v2.6.32-rc1
v2.6.32-rc2
v2.6.32-rc3
v2.6.32-rc4
v2.6.32-rc5
v2.6.32-rc6
v2.6.32-rc7
v2.6.32-rc8
v2.6.33
v2.6.33-rc1
v2.6.33-rc2
v2.6.33-rc3
v2.6.33-rc4
v2.6.33-rc5
v2.6.33-rc6
v2.6.33-rc7
v2.6.33-rc8
v2.6.34
v2.6.34-rc1
v2.6.34-rc2
v2.6.34-rc3
v2.6.34-rc4
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v2.6.35
v2.6.35-rc1
v2.6.35-rc2
v2.6.35-rc3
v2.6.35-rc4
v2.6.35-rc5
v2.6.35-rc6
v2.6.36
v2.6.36-rc1
v2.6.36-rc2
v2.6.36-rc3
v2.6.36-rc4
v2.6.36-rc5
v2.6.36-rc6
v2.6.36-rc7
v2.6.36-rc8
v2.6.37
v2.6.37-rc1
v2.6.37-rc2
v2.6.37-rc3
v2.6.37-rc4
v2.6.37-rc5
v2.6.37-rc6
v2.6.37-rc7
v2.6.37-rc8
v2.6.38
v2.6.38-rc1
v2.6.38-rc2
v2.6.38-rc3
v2.6.38-rc4
v2.6.38-rc5
v2.6.38-rc6
v2.6.38-rc7
v2.6.38-rc8
v2.6.39
v2.6.39-rc1
v2.6.39-rc2
v2.6.39-rc3
v2.6.39-rc4
v2.6.39-rc5
v2.6.39-rc6
v2.6.39-rc7
v3.*
v3.0-rc1
v3.0-rc2
v3.0-rc3
v3.0-rc4
Database specific
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-25669.json"
vanir_signatures
[
{
"target": {
"function": "sunkbd_reinit",
"file": "drivers/input/keyboard/sunkbd.c"
},
"signature_version": "v1",
"source": "https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e",
"signature_type": "Function",
"deprecated": false,
"id": "CVE-2020-25669-2ef9f874",
"digest": {
"function_hash": "104334658876116112984850968431497711748",
"length": 699.0
}
},
{
"source": "https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e",
"signature_version": "v1",
"target": {
"function": "sunkbd_interrupt",
"file": "drivers/input/keyboard/sunkbd.c"
},
"signature_type": "Function",
"deprecated": false,
"id": "CVE-2020-25669-5d3987c8",
"digest": {
"function_hash": "6367602438856320083335949813575234265",
"length": 894.0
}
},
{
"target": {
"file": "drivers/input/keyboard/sunkbd.c"
},
"signature_version": "v1",
"source": "https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e",
"signature_type": "Line",
"deprecated": false,
"id": "CVE-2020-25669-62ee3537",
"digest": {
"threshold": 0.9,
"line_hashes": [
"118443532649537729941164673811931340163",
"203422894197475587745740242930361167592",
"164083477563821247878985626832757806476",
"61999899458629429136124360853706058765",
"63279945143989848315624696910852363939",
"123018636941730572960266198395926658616",
"183507149842197368945927851632256745067",
"111131185691292227801151521408911123159",
"187111365880764740442279416957264087128",
"154382406990812131599216740163784003465",
"153675118561862691926914250467307895224",
"162160927677496898538112843028620145315",
"49941134006353884664399353715228690198",
"291793303316683833641795005995016011429",
"68167436149283934921765433719294647516",
"264558019207172767982267730792785594691",
"26233430185146513213152028039451186732",
"54125615799416165011841180645235597537",
"318579792029624966781450794205982525009"
]
}
},
{
"deprecated": false,
"signature_version": "v1",
"source": "https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e",
"signature_type": "Function",
"target": {
"function": "sunkbd_enable",
"file": "drivers/input/keyboard/sunkbd.c"
},
"id": "CVE-2020-25669-7cd22648",
"digest": {
"function_hash": "90205578429393617714537585819780989492",
"length": 144.0
}
}
]
vanir_signatures_modified
"2026-04-12T00:37:16Z"