Куда я попал?
SECURITM это SGRC система, ? автоматизирующая процессы в службах информационной безопасности. SECURITM помогает построить и управлять ИСПДн, КИИ, ГИС, СМИБ/СУИБ, банковскими системами защиты.
А еще SECURITM это место для обмена опытом и наработками для служб безопасности.

CVE-2021-3449

PUBLISHED 17.09.2024

CNA: openssl

NULL pointer deref in signature_algorithms processing

Обновлено: 21.06.2024
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).

БДУ ФСТЭК

Идентификатор Описание
BDU:2021-01844 Уязвимость реализации протокола TLS библиотеки OpenSSL, позволяющая нарушителю вызвать отказ в обслуживании

Доп. Информация

Product Status

OpenSSL
Product: OpenSSL
Vendor: OpenSSL
Default status: Не определен
Версии:
Затронутые версии Статус
Наблюдалось в версии Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j) affected
 

Ссылки

https://www.openssl.org/news/secadv/20210325.txt
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=fb9fa6b51defd48157eeb207f52181f735d96148
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJd
https://www.debian.org/security/2021/dsa-4875
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://security.gentoo.org/glsa/202103-03
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CCBFLLVQVILIVGZMBJL3IXZ...
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.tenable.com/security/tns-2021-10
https://www.tenable.com/security/tns-2021-09
https://security.netapp.com/advisory/ntap-20210513-0002/
https://security.netapp.com/advisory/ntap-20210326-0006/
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:07.openssl.asc
https://www.tenable.com/security/tns-2021-06
https://www.tenable.com/security/tns-2021-05
https://kc.mcafee.com/corporate/index?page=content&id=SB10356
https://www.oracle.com//security-alerts/cpujul2021.html
https://cert-portal.siemens.com/productcert/pdf/ssa-772220.pdf
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44845
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0013
https://lists.debian.org/debian-lts-announce/2021/08/msg00029.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
https://www.oracle.com/security-alerts/cpujul2022.html
https://security.netapp.com/advisory/ntap-20240621-0006/

CVE Program Container

Обновлено: 03.08.2024
SSVC and KEV, plus CVSS and CWE if not provided by the CNA.

Ссылки

https://www.openssl.org/news/secadv/20210325.txt
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=fb9fa6b51defd48157eeb207f52181f735d96148
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJd
https://www.debian.org/security/2021/dsa-4875
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://security.gentoo.org/glsa/202103-03
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CCBFLLVQVILIVGZMBJL3IXZ...
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.tenable.com/security/tns-2021-10
https://www.tenable.com/security/tns-2021-09
https://security.netapp.com/advisory/ntap-20210513-0002/
https://security.netapp.com/advisory/ntap-20210326-0006/
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:07.openssl.asc
https://www.tenable.com/security/tns-2021-06
https://www.tenable.com/security/tns-2021-05
https://kc.mcafee.com/corporate/index?page=content&id=SB10356
https://www.oracle.com//security-alerts/cpujul2021.html
https://cert-portal.siemens.com/productcert/pdf/ssa-772220.pdf
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44845
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0013
https://lists.debian.org/debian-lts-announce/2021/08/msg00029.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
https://www.oracle.com/security-alerts/cpujul2022.html
https://security.netapp.com/advisory/ntap-20240621-0006/

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