CVE-2021-3449CWE-476

CVE-2021-3449

Medium · published March 25, 2021

Patch now

High probability of exploitation

CVSS calls it medium at 5.9. It sits in the 99.2th percentile for exploit probability.

CVSS v3.1
5.9
EPSS
64%
Percentile
99.2
In the wild
Unconfirmed
What it is

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.63542 · 99.2th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2021-03-25T19:15Z
Affected products (143)
ProductVersionsFixed in
openssl/openssl≥ 1.1.1, < 1.1.1k1.1.1k
debian/debian_linuxall versions—
debian/debian_linuxall versions—
freebsd/freebsdall versions—
freebsd/freebsdall versions—
freebsd/freebsdall versions—
netapp/active_iq_unified_managerall versions—
netapp/cloud_volumes_ontap_mediatorall versions—
netapp/e-series_performance_analyzerall versions—
netapp/oncommand_insightall versions—
netapp/oncommand_workflow_automationall versions—
netapp/ontap_select_deploy_administration_utilityall versions—
netapp/santricity_smi-s_providerall versions—
netapp/snapcenterall versions—
netapp/storagegridall versions—
tenable/log_correlation_engine< 6.0.96.0.9
tenable/nessus≤ 8.13.1—
tenable/nessus_network_monitorall versions—
tenable/nessus_network_monitorall versions—
tenable/nessus_network_monitorall versions—
tenable/nessus_network_monitorall versions—
tenable/nessus_network_monitorall versions—
tenable/tenable.sc≥ 5.13.0, ≤ 5.17.0—
fedoraproject/fedoraall versions—
mcafee/web_gatewayall versions—
mcafee/web_gatewayall versions—
mcafee/web_gatewayall versions—
mcafee/web_gateway_cloud_serviceall versions—
mcafee/web_gateway_cloud_serviceall versions—
mcafee/web_gateway_cloud_serviceall versions—
checkpoint/quantum_security_management_firmwareall versions—
checkpoint/quantum_security_management_firmwareall versions—
checkpoint/multi-domain_management_firmwareall versions—
checkpoint/multi-domain_management_firmwareall versions—
checkpoint/quantum_security_gateway_firmwareall versions—
checkpoint/quantum_security_gateway_firmwareall versions—
oracle/mysql_server≥ 8.0.15, ≤ 8.0.23—
oracle/mysql_workbench≤ 8.0.23—
oracle/peoplesoft_enterprise_peopletoolsall versions—
oracle/peoplesoft_enterprise_peopletoolsall versions—
oracle/peoplesoft_enterprise_peopletoolsall versions—
oracle/primavera_unifier≥ 17.7, ≤ 17.12—
oracle/primavera_unifierall versions—
oracle/primavera_unifierall versions—
oracle/primavera_unifierall versions—
oracle/secure_backup< 18.1.0.1.018.1.0.1.0
oracle/secure_global_desktopall versions—
oracle/zfs_storage_appliance_kitall versions—
oracle/communications_communications_policy_managementall versions—
oracle/enterprise_manager_for_storage_managementall versions—
oracle/essbaseall versions—
oracle/graalvmall versions—
oracle/graalvmall versions—
oracle/graalvmall versions—
oracle/jd_edwards_enterpriseone_tools< 9.2.6.09.2.6.0
oracle/jd_edwards_world_securityall versions—
oracle/mysql_connectors≤ 8.0.23—
oracle/mysql_server≤ 5.7.33—
sonicwall/sma100_firmware≥ 10.2.0.0, < 10.2.1.0-17sv10.2.1.0-17sv
sonicwall/capture_clientall versions—
sonicwall/sonicosall versions—
siemens/ruggedcom_rcm1224_firmware≥ 6.2—
siemens/scalance_lpe9403_firmwareall versions—
siemens/scalance_m-800_firmware≥ 6.2—
siemens/scalance_s602_firmware≥ 4.1—
siemens/scalance_s612_firmware≥ 4.1—
siemens/scalance_s615_firmware≥ 6.2—
siemens/scalance_s623_firmware≥ 4.1—
siemens/scalance_s627-2m_firmware≥ 4.1—
siemens/scalance_sc-600_firmware≥ 2.0—
siemens/scalance_w700_firmware≥ 6.5—
siemens/scalance_w1700_firmware≥ 2.0—
siemens/scalance_xb-200_firmware< 4.34.3
siemens/scalance_xc-200_firmware< 4.34.3
siemens/scalance_xf-200ba_firmware< 4.34.3
siemens/scalance_xm-400_firmware< 6.46.4
siemens/scalance_xp-200_firmware< 4.34.3
siemens/scalance_xr-300wg_firmware< 4.34.3
siemens/scalance_xr524-8c_firmware< 6.46.4
siemens/scalance_xr526-8c_firmware< 6.46.4
siemens/scalance_xr528-6m_firmware< 6.46.4
siemens/scalance_xr552-12_firmware< 6.46.4
siemens/simatic_cloud_connect_7_firmware≥ 1.1—
siemens/simatic_cloud_connect_7_firmwareall versions—
siemens/simatic_cp_1242-7_gprs_v2_firmware≥ 3.1—
siemens/simatic_cp_1242-7_gprs_v2_firmwareall versions—
siemens/simatic_hmi_basic_panels_2nd_generation_firmwareall versions—
siemens/simatic_hmi_comfort_outdoor_panels_firmwareall versions—
siemens/simatic_hmi_ktp_mobile_panels_firmwareall versions—
siemens/simatic_mv500_firmwareall versions—
siemens/simatic_net_cp_1243-1_firmware≥ 3.1—
siemens/simatic_net_cp1243-7_lte_eu_firmware≥ 3.1—
siemens/simatic_net_cp1243-7_lte_us_firmware≥ 3.1—
siemens/simatic_net_cp_1243-8_irc_firmware≥ 3.1—
siemens/simatic_net_cp_1542sp-1_irc_firmware≥ 2.1—
siemens/simatic_net_cp_1543-1_firmware≥ 2.2, < 3.03.0
siemens/simatic_net_cp_1543sp-1_firmware≥ 2.1—
siemens/simatic_net_cp_1545-1_firmware≥ 1.0—
siemens/simatic_pcs_7_telecontrol_firmwareall versions—
siemens/simatic_pcs_neo_firmwareall versions—
siemens/simatic_pdm_firmware≥ 9.1.0.7—
siemens/simatic_process_historian_opc_ua_server_firmware≥ 2019—
siemens/simatic_rf166c_firmwareall versions—
siemens/simatic_rf185c_firmwareall versions—
siemens/simatic_rf186c_firmwareall versions—
siemens/simatic_rf186ci_firmwareall versions—
siemens/simatic_rf188c_firmwareall versions—
siemens/simatic_rf188ci_firmwareall versions—
siemens/simatic_rf360r_firmwareall versions—
siemens/simatic_s7-1200_cpu_1211c_firmwareall versions—
siemens/simatic_s7-1200_cpu_1212c_firmwareall versions—
siemens/simatic_s7-1200_cpu_1212fc_firmwareall versions—
siemens/simatic_s7-1200_cpu_1214_fc_firmwareall versions—
siemens/simatic_s7-1200_cpu_1214c_firmwareall versions—
siemens/simatic_s7-1200_cpu_1214_fc_firmwareall versions—
siemens/simatic_s7-1200_cpu_1215_fc_firmwareall versions—
siemens/simatic_s7-1200_cpu_1215c_firmwareall versions—
siemens/simatic_s7-1200_cpu_1217c_firmwareall versions—
siemens/simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmwareall versions—
siemens/sinamics_connect_300_firmwareall versions—
siemens/tim_1531_irc_firmware≥ 2.0, < 2.22.2
siemens/simatic_logon≥ 1.6.0.2—
siemens/simatic_logonall versions—
siemens/simatic_wincc_runtime_advancedall versions—
siemens/simatic_wincc_telecontrolall versions—
siemens/sinec_nmsall versions—
siemens/sinec_nmsall versions—
siemens/sinec_pniall versions—
siemens/sinema_serverall versions—
siemens/sinema_serverall versions—
siemens/sinema_serverall versions—
siemens/sinema_serverall versions—
siemens/sinema_serverall versions—
siemens/sinumerik_opc_ua_serverall versions—
siemens/tia_administratorall versions—
siemens/sinec_infrastructure_network_services< 1.0.1.11.0.1.1
nodejs/node.js≥ 10.0.0, ≤ 10.12.0—
nodejs/node.js≥ 10.13.0, ≤ 10.24.0—
nodejs/node.js≥ 12.0.0, ≤ 12.12.0—
nodejs/node.js≥ 12.13.0, < 12.22.112.22.1
nodejs/node.js≥ 14.0.0, ≤ 14.14.0—
nodejs/node.js≥ 14.15.0, < 14.16.114.16.1
nodejs/node.js≥ 15.0.0, < 15.14.015.14.0
References (58)
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[email protected]https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0013 · [email protected]https://security.FreeBSD.org/advisories/FreeBSD-SA-21:07.openssl.asc · [email protected]https://security.gentoo.org/glsa/202103-03 · [email protected]https://security.netapp.com/advisory/ntap-20210326-0006/ · [email protected]https://security.netapp.com/advisory/ntap-20210513-0002/ · [email protected]https://security.netapp.com/advisory/ntap-20240621-0006/ · [email protected]https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJd · [email protected]https://www.debian.org/security/2021/dsa-4875 · [email protected]https://www.openssl.org/news/secadv/20210325.txt · [email protected]https://www.oracle.com//security-alerts/cpujul2021.html · [email protected]https://www.oracle.com/security-alerts/cpuApr2021.html · [email protected]https://www.oracle.com/security-alerts/cpuapr2022.html · [email protected]https://www.oracle.com/security-alerts/cpujul2022.html · [email protected]https://www.oracle.com/security-alerts/cpuoct2021.html · [email protected]https://www.tenable.com/security/tns-2021-05 · [email protected]https://www.tenable.com/security/tns-2021-06 · [email protected]https://www.tenable.com/security/tns-2021-09 · [email protected]https://www.tenable.com/security/tns-2021-10 · [email protected]http://www.openwall.com/lists/oss-security/2021/03/27/1 · af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/03/27/2 · af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/03/28/3 · af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/03/28/4 · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-772220.pdf · af854a3a-2127-422b-91ae-364da2661108https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=fb9fa6b51defd48157eeb207f52181f735d96148 · af854a3a-2127-422b-91ae-364da2661108https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44845 · af854a3a-2127-422b-91ae-364da2661108https://kc.mcafee.com/corporate/index?page=content&id=SB10356 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/08/msg00029.html · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CCBFLLVQVILIVGZMBJL3IXZGKWQISYNP/ · af854a3a-2127-422b-91ae-364da2661108https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0013 · af854a3a-2127-422b-91ae-364da2661108https://security.FreeBSD.org/advisories/FreeBSD-SA-21:07.openssl.asc · af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202103-03 · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210326-0006/ · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210513-0002/ · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240621-0006/ · af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJd · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4875 · af854a3a-2127-422b-91ae-364da2661108https://www.openssl.org/news/secadv/20210325.txt · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com//security-alerts/cpujul2021.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuApr2021.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuapr2022.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujul2022.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2021.html · af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/tns-2021-05 · af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/tns-2021-06 · af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/tns-2021-09 · af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/tns-2021-10 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 25 MAR 14:25Z
    NULL pointer deref in signature_algorithms processing
    cvelistv5