Vulnerability Report

CVE-2021-3449

Title: Siemens Ruggedcom Rcm1224 Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2021-3449.

CWE Category CWE-476
Published Date Mar 25, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.9 CVSS v3.1
Exploit Probability (EPSS)
9.86%

Vulnerability Summary

CVE-2021-3449: 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).

Impacted Vendors

T
tenable 4
R
redhat 1
T
tarantella 1
N
netapp 9
H
hpe 1
M
mysql 1
C
checkpoint 3
N
nessus 1
S
symantec 1
S
sonicwall 2
O
openssl 1
O
oracle 14
M
mcafee 2
S
siemens 66
J
joyent 1
N
nodejs 1

Reference Links

http://www.openwall.com/lists/oss-security/2021/03/27/1 http://www.openwall.com/lists/oss-security/2021/03/27/2 http://www.openwall.com/lists/oss-security/2021/03/28/3 http://www.openwall.com/lists/oss-security/2021/03/28/4 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-772220.pdf https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=fb9fa6b51defd48157eeb207f52181f735d96148 https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44845 https://kc.mcafee.com/corporate/index?page=content&id=SB10356 https://lists.debian.org/debian-lts-announce/2021/08/msg00029.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CCBFLLVQVILIVGZMBJL3IXZGKWQISYNP/ https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0013 https://security.FreeBSD.org/advisories/FreeBSD-SA-21:07.openssl.asc https://security.gentoo.org/glsa/202103-03 https://security.netapp.com/advisory/ntap-20210326-0006/ https://security.netapp.com/advisory/ntap-20210513-0002/ https://security.netapp.com/advisory/ntap-20240621-0006/ https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJd https://www.debian.org/security/2021/dsa-4875 https://www.openssl.org/news/secadv/20210325.txt https://www.oracle.com//security-alerts/cpujul2021.html https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com/security-alerts/cpuapr2022.html https://www.oracle.com/security-alerts/cpujul2022.html https://www.oracle.com/security-alerts/cpuoct2021.html https://www.tenable.com/security/tns-2021-05 https://www.tenable.com/security/tns-2021-06 https://www.tenable.com/security/tns-2021-09 https://www.tenable.com/security/tns-2021-10 http://www.openwall.com/lists/oss-security/2021/03/27/1 http://www.openwall.com/lists/oss-security/2021/03/27/2 http://www.openwall.com/lists/oss-security/2021/03/28/3 http://www.openwall.com/lists/oss-security/2021/03/28/4 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-772220.pdf https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=fb9fa6b51defd48157eeb207f52181f735d96148 https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44845 https://kc.mcafee.com/corporate/index?page=content&id=SB10356 https://lists.debian.org/debian-lts-announce/2021/08/msg00029.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CCBFLLVQVILIVGZMBJL3IXZGKWQISYNP/ https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0013 https://security.FreeBSD.org/advisories/FreeBSD-SA-21:07.openssl.asc https://security.gentoo.org/glsa/202103-03 https://security.netapp.com/advisory/ntap-20210326-0006/ https://security.netapp.com/advisory/ntap-20210513-0002/ https://security.netapp.com/advisory/ntap-20240621-0006/ https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJd https://www.debian.org/security/2021/dsa-4875 https://www.openssl.org/news/secadv/20210325.txt https://www.oracle.com//security-alerts/cpujul2021.html https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com/security-alerts/cpuapr2022.html https://www.oracle.com/security-alerts/cpujul2022.html https://www.oracle.com/security-alerts/cpuoct2021.html https://www.tenable.com/security/tns-2021-05 https://www.tenable.com/security/tns-2021-06 https://www.tenable.com/security/tns-2021-09 https://www.tenable.com/security/tns-2021-10
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.9
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-3449 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.