CVE-2021-3516
- Source
- https://cve.org/CVERecord?id=CVE-2021-3516
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3516.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-3516
- Downstream
- Related
- Published
- 2021-06-01T14:15:10.373Z
- Modified
- 2026-07-08T22:13:15.694337Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
- Database specific
{ "unresolved_ranges": [ { "extracted_events": [ { "introduced": "9.0" }, { "last_affected": "9.0" } ], "source": "CPE_STRING", "vendor_product": "debian:debian_linux", "cpes": [ "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*" ] }, { "extracted_events": [ { "introduced": "33" }, { "last_affected": "33" }, { "introduced": "34" }, { "last_affected": "34" } ], "source": "CPE_STRING", "vendor_product": "fedoraproject:fedora", "cpes": [ "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*" ] }, { "extracted_events": [ { "introduced": "8.8" }, { "last_affected": "8.8" } ], "source": "CPE_STRING", "vendor_product": "oracle:zfs_storage_appliance_kit", "cpes": [ "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*" ] }, { "extracted_events": [ { "introduced": "7.0" }, { "last_affected": "7.0" }, { "introduced": "8.0" }, { "last_affected": "8.0" } ], "source": "CPE_STRING", "vendor_product": "redhat:enterprise_linux", "cpes": [ "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*" ] } ] }- References
-
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/
- https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html
- https://security.gentoo.org/glsa/202107-05
- https://security.netapp.com/advisory/ntap-20210716-0005/
- https://bugzilla.redhat.com/show_bug.cgi?id=1954225
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/230
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539
- https://www.oracle.com/security-alerts/cpujan2022.html
Affected packages
Git / gitlab.gnome.org/gnome/libxml2
Affected ranges
- Type
- GIT
- Repo
- https://gitlab.gnome.org/gnome/libxml2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedLast affectedFixed
- Database specific
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "2.9.11" }, { "introduced": "6.0" }, { "last_affected": "6.0" } ], "source": [ "CPE_RANGE", "CPE_STRING", "REFERENCES" ], "cpe": [ "cpe:2.3:a:xmlsoft:xmllint:*:*:*:*:*:*:*:*", "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*" ] }
Affected versions
6.*
6.0
Other
CVE-2013-2877
CVE-2014-0191
CVE-2014-3660
CVE-2015-1819
CVE-2015-5312
CVE-2015-7497
CVE-2015-7498
CVE-2015-7499-1
CVE-2015-7499-2
CVE-2015-7500
CVE-2015-7941_1
CVE-2015-7941_2
CVE-2015-7942
CVE-2015-7942-2
CVE-2015-8035
CVE-2015-8242
CVE-2015-8317
CVE-2016-1762
CVE-2016-1833
CVE-2016-1834
CVE-2016-1835
CVE-2016-1836
CVE-2016-1837
CVE-2016-1838
CVE-2016-1839
CVE-2016-1840
CVE-2016-3627
CVE-2016-3705
CVE-2016-4449
CVE-2016-4483
CVE-2021-3541
LIBXML2_2_6_1
LIBXML2_2_6_11
LIBXML2_2_6_12
LIBXML2_2_6_13
LIBXML2_2_6_14
LIBXML2_2_6_15
LIBXML2_2_6_16
LIBXML2_2_6_18
LIBXML2_2_6_19
LIBXML2_2_6_2
LIBXML2_2_6_20
LIBXML2_2_6_21
LIBXML2_2_6_22
LIBXML2_2_6_23
LIBXML2_2_6_24
LIBXML2_2_6_26
LIBXML2_2_6_27
LIBXML2_2_6_28
LIBXML2_2_6_3
LIBXML2_2_6_4
LIBXML2_2_6_5
LIBXML2_2_6_6
LIBXML2_2_6_7
LIBXML2_2_6_8
LIBXML2_2_6_9
LIBXML2_6_0
LIBXML_2_6_10
LIBXML2.*
LIBXML2.6.32
LIBXML2.7.0
LIBXML2.7.1
LIBXML2.7.2
LIBXML2.7.3
v2.*
v2.7.4
v2.7.5
v2.7.6
v2.7.7
v2.7.8
v2.8.0
v2.8.0-rc1
v2.8.0-rc2
v2.9.0
v2.9.0-rc2
v2.9.1
v2.9.10
v2.9.10-rc1
v2.9.2
v2.9.2-rc1
v2.9.2-rc2
v2.9.3
v2.9.4
v2.9.4-rc1
v2.9.4-rc2
v2.9.5
v2.9.5-rc1
v2.9.5-rc2
v2.9.6
v2.9.6-rc1
v2.9.7
v2.9.7-rc1
v2.9.8
v2.9.8-rc1
v2.9.9
v2.9.9-rc1
v2.9.9-rc2
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3516.json"
vanir_signatures_modified
"2026-07-08T22:13:15Z"
vanir_signatures
[
{
"digest": {
"line_hashes": [
"125923364555687102912767750593616075062",
"164402031157988608807981467698484062586",
"187480151731575691958788539215601771876",
"198926099027557728522349673134118447470"
],
"threshold": 0.9
},
"id": "CVE-2021-3516-22c624ac",
"deprecated": false,
"signature_version": "v1",
"source": "https://gitlab.gnome.org/gnome/libxml2@1358d157d0bd83be1dfe356a69213df9fac0b539",
"signature_type": "Line",
"target": {
"file": "xmllint.c"
}
},
{
"digest": {
"line_hashes": [
"61551077790304056876126381115245055965",
"278846916215258117913027984776762678417",
"335982757857177150834168525661853921922",
"87840030754328165737181167332541198940",
"61551077790304056876126381115245055965",
"278846916215258117913027984776762678417",
"105711474186756975709469310745455797308",
"103706706750952072917010335478765316004",
"227047217400973127911964602216150042388",
"253258039250536385915162828640596572926",
"335982757857177150834168525661853921922",
"87840030754328165737181167332541198940",
"227047217400973127911964602216150042388",
"253258039250536385915162828640596572926",
"105711474186756975709469310745455797308",
"263486003320329746243870951465374401173",
"112950646771093583388072220651695062566",
"231864520689178078662381811343978537663",
"213333773092754020127207462965134162165",
"19008729915787537273927561381864711242",
"112950646771093583388072220651695062566",
"231864520689178078662381811343978537663",
"213333773092754020127207462965134162165",
"19008729915787537273927561381864711242",
"273240550832595461615251408636344817319",
"162912241845094166163791832543701405088",
"671650474723048413359612334217206008",
"22766956053755843453510076977580137201",
"13167474649499926961065524423099785312",
"83470413458974766405520199037916535562",
"276402490468899750538561900822383734744",
"333682037389609673181412300351361172030",
"9499193487410093391036358074880903632",
"30805303948970631633603096678317204355",
"93889085830397632709481663916004609330",
"229956981014592868447519071218013779439",
"240624245583924818381392266620352655927",
"223174899253645334504338538819361168413",
"294476493037697202535040764027097131119",
"129304591418198192271541858825325701656",
"140204848231080657012011575632498051783",
"75311632195512841680531928924350830586",
"256053888072821081238103619703165798762",
"235378452580802392739918607691411522119",
"244992818881073020881304797438692585130",
"66651940352215863530508914348900210359",
"48019944339009281467628355593178272818",
"106918772490863171659640772695582053951",
"116925370429586760959130651896312835976",
"148133004854708868535797103792350393744",
"102183146399774788380381559441867815797",
"308117370035021215489377534456228663968",
"187339639605561687559806077174150854909",
"130836858511549172127312257489846408951",
"52797561731550596294797782502825671297",
"313419538420946173683294680071732735569",
"246138447249870484217065672110268629284"
],
"threshold": 0.9
},
"id": "CVE-2021-3516-5d358667",
"deprecated": false,
"signature_version": "v1",
"source": "https://gitlab.gnome.org/gnome/libxml2@e1bcffea180d6cc0651757bb64284a763e0e2239",
"signature_type": "Line",
"target": {
"file": "testapi.c"
}
},
{
"digest": {
"function_hash": "198329610838053062539893085088781189951",
"length": 1155.0
},
"id": "CVE-2021-3516-88b79f4c",
"deprecated": false,
"signature_version": "v1",
"source": "https://gitlab.gnome.org/gnome/libxml2@e1bcffea180d6cc0651757bb64284a763e0e2239",
"signature_type": "Function",
"target": {
"function": "test_xmlIO",
"file": "testapi.c"
}
}
]