VDB
RHBA-2021%3A3472
RHBA-2021%3A3472
PUBLISHED
CVSS 8.100000381469727 HIGH
A flaw was found in nginx. An off-by-one error while processing DNS responses allows a network attacker to write a dot character out of bounds in a heap allocated buffer which can allow overwriting the least significant byte of next heap chunk metadata likely leading to a remote code execution in certain circumstances. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | ansible-tower-38/ansible-tower-rhel7@sha256:5bde31ed06a473f6326390136b04b56e5cab05aa457b9592b1977167d0a45a02_amd64 as a component of Red Hat Ansible Tower 3.8 for RHEL 7 | ansible-tower-38/ansible-tower-rhel7@sha256:5bde31ed06a473f6326390136b04b56e5cab05aa457b9592b1977167d0a45a02_amd64, * |
Timeline
- Sep 8, 2021 CVE Published
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- 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/RHBA-2021:3472 advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhba-2021_3472.json advisory
- https://access.redhat.com/security/cve/CVE-2021-23017 advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1963121 issue
- https://www.cve.org/CVERecord?id=CVE-2021-23017 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-23017 advisory
- https://access.redhat.com/security/cve/CVE-2021-31535 advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1961822 issue
- https://www.cve.org/CVERecord?id=CVE-2021-31535 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-31535 advisory
- https://unparalleled.eu/blog/2021/20210518-using-xterm-to-navigate-the-huge-color-space/ advisory
- https://unparalleled.eu/publications/2021/advisory-unpar-2021-1.txt advisory
- https://access.redhat.com/security/cve/CVE-2021-32027 advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876 issue
- https://www.cve.org/CVERecord?id=CVE-2021-32027 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-32027 advisory
- https://www.postgresql.org/support/security/CVE-2021-32027/ advisory
- https://access.redhat.com/security/cve/CVE-2021-32028 advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877 issue
- https://www.cve.org/CVERecord?id=CVE-2021-32028 advisory
…and 2 more