NULL pointer dereference in Checkpoint Multi-Domain Management
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.635 (99.2th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.635 · newest: 0.635 · change: 0.000
Affected products
- Checkpoint Multi-Domain Management
- Checkpoint Multi-Domain Management Firmware — versions r80.40, r81
- Checkpoint Quantum Security Gateway
- Checkpoint Quantum Security Gateway Firmware — versions r80.40, r81
- Checkpoint Quantum Security Management
- Checkpoint Quantum Security Management Firmware — versions r80.40, r81
- FreeBSD — versions 12.2
- Mcafee Web Gateway — versions 8.2.19, 9.2.10, 10.1.1
- Mcafee Web Gateway Cloud Service — versions 8.2.19, 9.2.10, 10.1.1
- NetApp Active Iq Unified Manager
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openssl.org/news/secadv/20210325.txt (Vendor Advisory)
- git.openssl.org/gitweb/
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-… (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2021/dsa-4875 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/03/27/1 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/03/27/2 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/03/28/3 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/03/28/4 (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202103-03 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-3449?
- CVE-2021-3449 is a medium-severity vulnerability in Checkpoint Multi-Domain Management, classified under NULL Pointer Dereference. CVSS score: 5.9/10. Published 2021-03-25.
- How severe is CVE-2021-3449?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2021-3449 known to be exploited?
- 50 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.