CVE-Katalog
CVE-2021-45960
libxmltok: CVE-2021-45960
- Schweregrad
- High · CVSS 8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 4.35% · Oct 22, 2026
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | expat | sid | 2.9.0-1 | fixed |
| Debian | expat | forky | 2.9.0-1 | fixed |
| Debian | expat | trixie | 2.8.3-1~deb13u1 | fixed |
| Debian | expat | trixie-security | 2.9.0-1~deb13u1 | fixed |
| Debian | expat | bookworm | 2.5.0-1+deb12u2 | fixed |
| Debian | expat | bookworm-security | 2.5.0-1+deb12u5 | fixed |
| Debian | libxmltok | bookworm | 1.2-4 | vulnerable |
| Cpe | libexpat | Not reported | 2.4.3 | fixed |
| Cpe | nessus | Not reported | 10.1.1 | fixed |
| Cpe | debian_linux | Not reported | Not reported | unknown |
| Cpe | sinema_remote_connect_server | Not reported | 3.1 | fixed |
| Cpe | active_iq_unified_manager | Not reported | Not reported | unknown |
| Cpe | hci_baseboard_management_controller | Not reported | Not reported | unknown |
| Cpe | oncommand_workflow_automation | Not reported | Not reported | unknown |
| Cpe | solidfire_\&_hci_management_node | Not reported | Not reported | unknown |
| Alpine | expat | 3.12 | 2.2.10-r0 | fixed |
| Alpine | expat | 3.13 | 2.2.10-r2 | fixed |
| Alpine | expat | 3.14 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.15 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.16 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.17 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.18 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.19 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.20 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.21 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.22 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.23 | 2.4.3-r0 | fixed |
| Alpine | expat | 3.24 | 2.4.3-r0 | fixed |
| Ubuntu | expat | pro | 2.1.0-7 | vulnerable |
| Ubuntu | expat | pro | 2.1.0-7ubuntu0.16.04.1 | vulnerable |
| Ubuntu | expat | pro | 2.1.0-7ubuntu0.16.04.2 | vulnerable |
| Ubuntu | expat | pro | 2.1.0-7ubuntu0.16.04.3 | vulnerable |
| Ubuntu | expat | pro | 2.1.0-7ubuntu0.16.04.4 | vulnerable |
| Ubuntu | expat | pro | 2.1.0-7ubuntu0.16.04.5 | vulnerable |
| Ubuntu | expat | pro | 2.1.0-7ubuntu0.16.04.5+esm2 | fixed |
| Ubuntu | expat | 18.04 | 2.2.3-1 | vulnerable |
| Ubuntu | expat | 18.04 | 2.2.3-2 | vulnerable |
| Ubuntu | expat | 18.04 | 2.2.5-0ubuntu2 | vulnerable |
| Ubuntu | expat | 18.04 | 2.2.5-3 | vulnerable |
| Ubuntu | expat | 18.04 | 2.2.5-3ubuntu0.1 | vulnerable |
| Ubuntu | expat | 18.04 | 2.2.5-3ubuntu0.2 | vulnerable |
| Ubuntu | expat | 18.04 | 2.2.5-3ubuntu0.4 | fixed |
| Ubuntu | expat | 20.04 | 2.2.7-2 | vulnerable |
| Ubuntu | expat | 20.04 | 2.2.9-1 | vulnerable |
| Ubuntu | expat | 20.04 | 2.2.9-1build1 | vulnerable |
| Ubuntu | expat | 20.04 | 2.2.9-1ubuntu0.2 | fixed |
| Opensuse | expat | leap 15.3 | 2.2.5-3.9.1 | fixed |
| Suse | expat | hpe helion openstack 8 | 2.1.0-21.12.1 | fixed |
| Suse | expat | openstack cloud 8 | 2.1.0-21.12.1 | fixed |
| Suse | expat | openstack cloud 9 | 2.1.0-21.12.1 | fixed |
| Suse | expat | openstack cloud crowbar 8 | 2.1.0-21.12.1 | fixed |
| Suse | expat | openstack cloud crowbar 9 | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise server for sap applications 12 sp3 | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise server for sap applications 12 sp4 | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise software development kit 12 sp5 | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise server 12 sp2-bcl | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise server 12 sp3-ltss | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise server 12 sp3-bcl | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise server 12 sp4-ltss | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise server 12 sp5 | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise server for sap applications 12 sp5 | 2.1.0-21.12.1 | fixed |
| Suse | expat | linux enterprise point of sale 11 sp3 | 2.0.1-88.42.12.1 | fixed |
| Suse | expat | linux enterprise server 11 sp4-ltss | 2.0.1-88.42.12.1 | fixed |
| Opensuse | expat | tumbleweed | 2.4.3-1.1 | fixed |
| Suse | expat | linux enterprise module for basesystem 15 sp3 | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise high performance computing 15-espos | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise high performance computing 15-ltss | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise high performance computing 15 sp1-espos | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise high performance computing 15 sp1-ltss | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise high performance computing 15 sp2-espos | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise high performance computing 15 sp2-ltss | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise server 15-ltss | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise server 15 sp1-bcl | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise server 15 sp1-ltss | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise server 15 sp2-bcl | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise server 15 sp2-ltss | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise server for sap applications 15 | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise server for sap applications 15 sp1 | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise server for sap applications 15 sp2 | 2.2.5-3.9.1 | fixed |
| Suse | expat | manager proxy 4.1 | 2.2.5-3.9.1 | fixed |
| Suse | expat | manager retail branch server 4.1 | 2.2.5-3.9.1 | fixed |
| Suse | expat | manager server 4.1 | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise micro 5.0 | 2.2.5-3.9.1 | fixed |
| Suse | expat | linux enterprise micro 5.1 | 2.2.5-3.9.1 | fixed |
| Suse | expat | enterprise storage 6 | 2.2.5-3.9.1 | fixed |
| Suse | expat | enterprise storage 7 | 2.2.5-3.9.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | expat | source | sid | 2.4.3-1 | not yet assigned | Not reported | [1002994] |
| Debian | expat | source | forky | 2.4.3-1 | not yet assigned | Not reported | [1002994] |
| Debian | expat | source | trixie | 2.4.3-1 | not yet assigned | Not reported | [1002994] |
| Debian | expat | source | bookworm | 2.4.3-1 | not yet assigned | Not reported | [1002994] |
| Debian | libxmltok | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | libexpat | cpe | Not reported | 2.4.3 | Not reported | NVD-CVE-2021-45960 | Not reported |
| Cpe | nessus | cpe | Not reported | 10.1.1 | Not reported | NVD-CVE-2021-45960 | Not reported |
| Cpe | sinema_remote_connect_server | cpe | Not reported | 3.1 | Not reported | NVD-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.12 | 2.2.10-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.13 | 2.2.10-r2 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.14 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.15 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.16 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.17 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.18 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.19 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.20 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.21 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.22 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.23 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Alpine | expat | apk | 3.24 | 2.4.3-r0 | Not reported | ALPINE-CVE-2021-45960 | Not reported |
| Ubuntu | expat | deb | pro | 2.1.0-7ubuntu0.16.04.5+esm2 | Not reported | USN-5288-1 | Not reported |
| Ubuntu | expat | deb | 18.04 | 2.2.5-3ubuntu0.4 | Not reported | USN-5288-1 | Not reported |
| Ubuntu | expat | deb | 20.04 | 2.2.9-1ubuntu0.2 | Not reported | USN-5288-1 | Not reported |
| Opensuse | expat | rpm | leap 15.3 | 2.2.5-3.9.1 | Not reported | OPENSUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | hpe helion openstack 8 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | openstack cloud 8 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | openstack cloud 9 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | openstack cloud crowbar 8 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | openstack cloud crowbar 9 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise server for sap applications 12 sp3 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise server for sap applications 12 sp4 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise software development kit 12 sp5 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 12 sp2-bcl | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 12 sp3-ltss | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 12 sp3-bcl | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 12 sp4-ltss | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 12 sp5 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise server for sap applications 12 sp5 | 2.1.0-21.12.1 | Not reported | SUSE-SU-2022:0179-1 | Not reported |
| Suse | expat | rpm | linux enterprise point of sale 11 sp3 | 2.0.1-88.42.12.1 | Not reported | SUSE-SU-2022:14878-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 11 sp4-ltss | 2.0.1-88.42.12.1 | Not reported | SUSE-SU-2022:14878-1 | Not reported |
| Opensuse | expat | rpm | tumbleweed | 2.4.3-1.1 | Not reported | OPENSUSE-SU-2024:11762-1 | Not reported |
| Suse | expat | rpm | linux enterprise module for basesystem 15 sp3 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise high performance computing 15-espos | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise high performance computing 15-ltss | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise high performance computing 15 sp1-espos | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise high performance computing 15 sp1-ltss | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise high performance computing 15 sp2-espos | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise high performance computing 15 sp2-ltss | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 15-ltss | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 15 sp1-bcl | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 15 sp1-ltss | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 15 sp2-bcl | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 15 sp2-ltss | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise server for sap applications 15 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise server for sap applications 15 sp1 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise server for sap applications 15 sp2 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | manager proxy 4.1 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | manager retail branch server 4.1 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | manager server 4.1 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise micro 5.0 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | linux enterprise micro 5.1 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | enterprise storage 6 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
| Suse | expat | rpm | enterprise storage 7 | 2.2.5-3.9.1 | Not reported | SUSE-SU-2022:0178-1 | Not reported |
Notes
[bookworm] libxmltok: Minor issue, no runtime dependencies left
OpenFactory catalog packages
Die Paketzuordnung läuft.
[Debian 12 (Bookworm)]
- [expat]Unbekannt
Details (4)
2.5.0-1+deb12u2· amd64 · bookwormBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u2· arm64 · bookwormBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u3· amd64 · bookworm-securityBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u3· arm64 · bookworm-securityBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
- [libexpat1]Unbekannt
Quellpaket: [expat]
Details (4)
2.5.0-1+deb12u2· amd64 · bookwormBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u2· arm64 · bookwormBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u3· amd64 · bookworm-securityBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u3· arm64 · bookworm-securityBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
- [libexpat1-dev]Unbekannt
Quellpaket: [expat]
Details (4)
2.5.0-1+deb12u2· amd64 · bookwormBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u2· arm64 · bookwormBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u3· amd64 · bookworm-securityBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
2.5.0-1+deb12u3· arm64 · bookworm-securityBehoben · Behoben:
2.4.3-1dsa · expat · debian · bookworm
- [libxmltok1]Unbekannt
Quellpaket: [libxmltok]
Details (2)
1.2-4· amd64 · bookwormBetroffen
dsa · libxmltok · debian · bookworm
1.2-4· arm64 · bookwormBetroffen
dsa · libxmltok · debian · bookworm
- [libxmltok1-dev]Unbekannt
Quellpaket: [libxmltok]
Details (2)
1.2-4· amd64 · bookwormBetroffen
dsa · libxmltok · debian · bookworm
1.2-4· arm64 · bookwormBetroffen
dsa · libxmltok · debian · bookworm
[openSUSE Tumbleweed]
- [expat]Unbekannt
Quellpaket: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedBehoben · Behoben:
2.4.3-1.1dsa · expat · opensuse · tumbleweed
- [libexpat1]Unbekannt
Quellpaket: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedUnbekannt · Behoben:
2.4.3-1.1Version impact unknown
dsa · expat · opensuse · tumbleweed
- [libexpat1-32bit]Unbekannt
Quellpaket: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedUnbekannt · Behoben:
2.4.3-1.1Version impact unknown
dsa · expat · opensuse · tumbleweed
- [libexpat-devel]Unbekannt
Quellpaket: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedUnbekannt · Behoben:
2.4.3-1.1Version impact unknown
dsa · expat · opensuse · tumbleweed
- [libexpat-devel-32bit]Unbekannt
Quellpaket: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedUnbekannt · Behoben:
2.4.3-1.1Version impact unknown
dsa · expat · opensuse · tumbleweed
Beobachtet:
Referenzen
- [https://access.redhat.com/errata/RHSA-2022:0951]
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2021-45960]
- [https://osv.dev/vulnerability/ALPINE-CVE-2021-45960]
- [https://osv.dev/vulnerability/DLA-2904-1]
- [https://osv.dev/vulnerability/DSA-5073-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:0178-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:0179-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:14878-1]
- [https://osv.dev/vulnerability/USN-5288-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2022:0178-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:11762-1]
- [https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2023/icsa-23-278-01.json]
- [https://security-tracker.debian.org/tracker/CVE-2021-45960]
- [https://wid.cert-bund.de/.well-known/csaf/white/2022/wid-sec-w-2022-0302.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]