CVE-2020-7469

Published Jun 4, 2021 CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed
Description
In FreeBSD 12.2-STABLE before r367402, 11.4-STABLE before r368202, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 the handler for a routing option caches a pointer into the packet buffer holding the ICMPv6 message. However, when processing subsequent options the packet buffer may be freed, rendering the cached pointer invalid. The network stack may later dereference the pointer, potentially triggering a use-after-free.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2020-28595 In FreeBSD 12.2-STABLE before r367402, 11.4-STABLE before r368202, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 the handler for a routing option caches a pointer into the packet buffer holding the ICMPv6 message. However, when processing subsequent options the packet buffer may be freed, rendering the cached pointer invalid. The network stack may later dereference the pointer, potentially triggering a use-after-free.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
freebsd
Published
Updated
Aug 4, 2024, 9:33 AM
Reserved
Jan 21, 2020, 12:00 AM
Status
Modified
Published
Jun 4, 2021, 12:15 PM
Modified
Jun 17, 2026, 3:24 AM