{"answers":{"affected":"It affects 10 products.","exploited":"There is no known exploitation of CVE-2021-43527 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-43527 is a critical memory corruption vulnerability in Netapp Cloud Backup, published on 8 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-43527 and fix it if it is affected.\n\nWhat it is: CVE-2021-43527 is a critical memory corruption vulnerability in Netapp Cloud Backup, published on 8 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-43527 in the wild and no public exploit code.\n\nAffected product: Netapp Cloud Backup. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-43527/ (Markdown: https://insights.sbomify.com/CVE-2021-43527/index.md)","id":"CVE-2021-43527","markdown":"https://insights.sbomify.com/CVE-2021-43527/index.md","name":"CVE-2021-43527","record":{"aliases":["ALPINE-CVE-2021-43527","ALSA-2021:4903","AZL-7024","CLSA-2021-1638804170","CLSA-2021-1639578644","CLSA-2021-1640002354","CLSA-2022-1645466754","DEBIAN-CVE-2021-43527","DLA-2836-1","DSA-5016-1","GHSA-7hfm-39v6-v3p5","MGASA-2021-0534","OESA-2022-1492","RHSA-2021:4903","RHSA-2021:4904","RHSA-2021:4907","RHSA-2021:4909","RHSA-2021:4919","RHSA-2021:4932","RHSA-2021:4933","RHSA-2021:4946","RHSA-2021:4953","RHSA-2021:4954","RHSA-2021:4969","RHSA-2021:4994","RHSA-2021:5006","RLSA-2021:4903","SUSE-SU-2021:14858-1","SUSE-SU-2021:3934-1","SUSE-SU-2021:3939-1","SUSE-SU-2022:2536-1","UBUNTU-CVE-2021-43527","USN-5168-1","USN-5168-2","USN-5168-3","USN-5168-4","openSUSE-SU-2021:3934-1","openSUSE-SU-2024:11663-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"NSS cryptographic library","requires_auth":"none","summary":"Heap overflow in NSS allows code execution when processing malicious DER-encoded signatures in email or document viewers.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mozilla","cpe":[{"product":"nss","vendor":"mozilla"},{"product":"nss_esr","vendor":"mozilla"},{"product":"cloud_backup","vendor":"netapp"},{"product":"e-series_santricity_os_controller","vendor":"netapp"},{"product":"communications_cloud_native_core_binding_support_function","vendor":"oracle"},{"product":"communications_cloud_native_core_network_repository_function","vendor":"oracle"},{"product":"communications_cloud_native_core_network_slice_selection_function","vendor":"oracle"},{"product":"communications_policy_management","vendor":"oracle"},{"product":"starwind_san_\\\u0026_nas","vendor":"starwindsoftware"},{"product":"starwind_virtual_san","vendor":"starwindsoftware"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS \\#7, or PKCS \\#12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and Evince are believed to be impacted. This vulnerability affects NSS \u003c 3.73 and NSS \u003c 3.68.1.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","Red Hat:enterprise_linux:8::appstream","Red Hat:rhel_aus:7.3::server","Red Hat:rhel_aus:7.4::server","Red Hat:rhel_aus:7.6::server","Red Hat:rhel_aus:7.7::server","Red Hat:rhel_e4s:7.6::server","Red Hat:rhel_e4s:7.7::server","Red Hat:rhel_e4s:8.1::appstream","Red Hat:rhel_els:6","Red Hat:rhel_eus:8.1::appstream","Red Hat:rhel_eus:8.2::appstream","Red Hat:rhel_eus:8.4::appstream","Red Hat:rhel_tus:7.6::server","Red Hat:rhel_tus:7.7::server","Red Hat:rhev_hypervisor:4.4::el8","Rocky Linux:8","SUSE:Enterprise Storage 6","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Micro 5.0","SUSE:Linux Enterprise Micro 5.1","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Basesystem 15 SP3","SUSE:Linux Enterprise Module for Server Applications 15 SP2","SUSE:Linux Enterprise Module for Server Applications 15 SP3","SUSE:Linux Enterprise Point of Sale 11 SP3","SUSE:Linux Enterprise Server 11 SP4-LTSS","SUSE:Linux Enterprise Server 12 SP2-BCL","SUSE:Linux Enterprise Server 12 SP3-BCL","SUSE:Linux Enterprise Server 12 SP3-LTSS","SUSE:Linux Enterprise Server 12 SP4-LTSS","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server 15 SP1-BCL","SUSE:Linux Enterprise Server 15 SP1-LTSS","SUSE:Linux Enterprise Server 15-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 12 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15","SUSE:Linux Enterprise Server for SAP Applications 15 SP1","SUSE:Linux Enterprise Software Development Kit 12 SP5","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.3","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Memory corruption in NSS","id":"CVE-2021-43527","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"netapp:cloud_backup","products":["netapp:cloud_backup","netapp:e-series_santricity_os_controller","oracle:communications_cloud_native_core_binding_support_function","oracle:communications_policy_management"],"type":"memory_corruption","year":"2021"},"n_packages":214,"n_references":9,"next":{"headline":"Security feature bypass in Thunderbird","id":"CVE-2021-43528"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss","purl":"pkg:rpm/almalinux/nss","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-devel","purl":"pkg:rpm/almalinux/nss-devel","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn","purl":"pkg:rpm/almalinux/nss-softokn","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn-devel","purl":"pkg:rpm/almalinux/nss-softokn-devel","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn-freebl","purl":"pkg:rpm/almalinux/nss-softokn-freebl","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn-freebl-devel","purl":"pkg:rpm/almalinux/nss-softokn-freebl-devel","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-sysinit","purl":"pkg:rpm/almalinux/nss-sysinit","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-tools","purl":"pkg:rpm/almalinux/nss-tools","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-util","purl":"pkg:rpm/almalinux/nss-util","source":"ALSA-2021:4903"},{"ecosystem":"AlmaLinux:8","fixed":["3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-util-devel","purl":"pkg:rpm/almalinux/nss-util-devel","source":"ALSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss","purl":"pkg:rpm/redhat/nss","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-debuginfo","purl":"pkg:rpm/redhat/nss-debuginfo","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-devel","purl":"pkg:rpm/redhat/nss-devel","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-pkcs11-devel","purl":"pkg:rpm/redhat/nss-pkcs11-devel","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-sysinit","purl":"pkg:rpm/redhat/nss-sysinit","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-tools","purl":"pkg:rpm/redhat/nss-tools","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-debuginfo","purl":"pkg:rpm/redhat/nss-debuginfo","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-devel","purl":"pkg:rpm/redhat/nss-devel","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-pkcs11-devel","purl":"pkg:rpm/redhat/nss-pkcs11-devel","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss","purl":"pkg:rpm/redhat/nss","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-debuginfo","purl":"pkg:rpm/redhat/nss-debuginfo","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-devel","purl":"pkg:rpm/redhat/nss-devel","source":"RHSA-2021:4904"},{"ecosystem":"Red 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Hat:enterprise_linux:7::workstation","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-debuginfo","purl":"pkg:rpm/redhat/nss-debuginfo","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-devel","purl":"pkg:rpm/redhat/nss-devel","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-pkcs11-devel","purl":"pkg:rpm/redhat/nss-pkcs11-devel","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-sysinit","purl":"pkg:rpm/redhat/nss-sysinit","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:3.67.0-4.el7_9"],"introduced":["0"],"last_affected":[],"package":"nss-tools","purl":"pkg:rpm/redhat/nss-tools","source":"RHSA-2021:4904"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss","purl":"pkg:rpm/redhat/nss","source":"RHSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-debuginfo","purl":"pkg:rpm/redhat/nss-debuginfo","source":"RHSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-debugsource","purl":"pkg:rpm/redhat/nss-debugsource","source":"RHSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-devel","purl":"pkg:rpm/redhat/nss-devel","source":"RHSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn","purl":"pkg:rpm/redhat/nss-softokn","source":"RHSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn-debuginfo","purl":"pkg:rpm/redhat/nss-softokn-debuginfo","source":"RHSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn-devel","purl":"pkg:rpm/redhat/nss-softokn-devel","source":"RHSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn-freebl","purl":"pkg:rpm/redhat/nss-softokn-freebl","source":"RHSA-2021:4903"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.67.0-7.el8_5"],"introduced":["0"],"last_affected":[],"package":"nss-softokn-freebl-debuginfo","purl":"pkg:rpm/redhat/nss-softokn-freebl-debuginfo","source":"RHSA-2021:4903"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2021-43523"},"products":["NSS"],"published":"2021-12-08","related":[{"cvss_score":9.1,"headline":"Memory corruption in nss","id":"CVE-2020-12403","kev_date_added":null,"published":"2021-05-27"},{"cvss_score":6.5,"headline":"Information disclosure in NSS","id":"CVE-2023-4421","kev_date_added":null,"published":"2023-12-12"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Mozilla"]},"summary":"Heap overflow in NSS allows code execution when processing malicious DER-encoded signatures in email or document viewers.","url":"https://insights.sbomify.com/CVE-2021-43527/"}