VDB
RHSA-2026:55763
RHSA-2026:55763
PUBLISHED
CVSS 7.800000190734863 HIGH
A flaw was found in the Linux kernel's IPv6 ICMP error generation. A remote attacker could send a specially crafted IPv4 ICMP error packet with a Common Internet Protocol Security Option (CIPSO) IP option. This could lead to incorrect handling of packet control block data when generating an IPv6 ICMP error, potentially causing an out-of-bounds memory access. This memory corruption could result in information disclosure or a denial of service.
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | kpatch-patch-5_14_0-687_10_1-debugsource-0:1-6.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9) | * |
| Red Hat | kpatch-patch-5_14_0-687_10_1-debuginfo-0:1-6.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9) | * |
| Red Hat | kpatch-patch-5_14_0-687_10_1-0:1-6.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9) | * |
| Red Hat | kpatch-patch-5_14_0-687_10_1-debugsource-0:1-6.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9) | * |
| Red Hat | kpatch-patch-5_14_0-687_10_1-debuginfo-0:1-6.el9_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9) | * |
| Red Hat | kpatch-patch-5_14_0-687_10_1-0:1-6.el9_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 9) | * |
| Red Hat | kpatch-patch-5_14_0-687_10_1-0:1-6.el9_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9) | * |
Timeline
- Aug 17, 2026 CVE Published
- Aug 24, 2026 CVE Updated
- Aug 24, 2026 Distribution Patch
- Aug 24, 2026 Distribution Patch
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:55763 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2464397 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2467234 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2468124 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2484451 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2504052 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_55763.json advisory
- https://access.redhat.com/security/cve/CVE-2026-43038 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-43038 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-43038 advisory
- https://lore.kernel.org/linux-cve-announce/2026050103-CVE-2026-43038-b591@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-43125 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-43125 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-43125 advisory
- https://lore.kernel.org/linux-cve-announce/2026050619-CVE-2026-43125-c9f9@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-43329 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-43329 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-43329 advisory
- https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-43329.mbox advisory
…and 8 more