VDB
RHSA-2021%3A1200
RHSA-2021%3A1200
PUBLISHED
CVSS 5.900000095367432 MEDIUM
A flaw was found in openssl. A server crash and denial of service attack could occur if a client sends a TLSv1.2 renegotiation ClientHello and omits the signature_algorithms extension but includes a signature_algorithms_cert extension. The highest threat from this vulnerability is to system availability.
Risk Scores
CVSS 3.1
5.900000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | JBCS 2.4.37 SP7 |
Timeline
- Apr 14, 2021 CVE Published
- May 1, 2026 Distribution Patch
- May 1, 2026 Distribution Patch
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 14, 2026 CVE Updated
References
- https://access.redhat.com/errata/RHSA-2021:1200 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.apachehttp&downloadType=securityPatches&version=2.4.37 advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1941547 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=1941554 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_1200.json advisory
- https://access.redhat.com/security/cve/CVE-2021-3449 advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3449 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-3449 advisory
- https://www.openssl.org/news/secadv/20210325.txt advisory
- https://access.redhat.com/security/cve/CVE-2021-3450 advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3450 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-3450 advisory