Bug 2520305 - CVE-2026-73515 postgresql18-postgis: PostGIS: Memory Disclosure and Denial of Service via Malformed FlatGeobuf Buffer [fedora-all]
Summary: CVE-2026-73515 postgresql18-postgis: PostGIS: Memory Disclosure and Denial of...
Keywords:
Status: ON_QA
Alias: None
Product: Fedora
Classification: Fedora
Component: postgresql18-postgis
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Sandro Mani
QA Contact:
URL:
Whiteboard: {"flaws": ["bb2da580-b9c0-44d1-aa08-1...
Depends On:
Blocks: CVE-2026-73515
TreeView+ depends on / blocked
 
Reported: 2026-08-20 13:23 UTC by Laura Pardo
Modified: 2026-09-19 02:22 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Laura Pardo 2026-08-20 13:23:48 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

PostGIS before 3.7.0beta2 contains an out-of-bounds read vulnerability that allows attackers to cause memory disclosure or a server crash by supplying a malformed FlatGeobuf buffer. The FlatGeobuf property metadata decoder verifies that a string length field is present but fails to verify that the subsequent string body is contained within the supplied buffer before materializing it into a SQL-visible value, enabling memory disclosure or denial of service.

Comment 1 Fedora Update System 2026-09-18 10:56:11 UTC
FEDORA-2026-0fe48ab374 (postgresql16-postgis-3.6.4-5.fc44, postgresql17-postgis-3.6.4-5.fc44, and 1 more) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-0fe48ab374

Comment 2 Fedora Update System 2026-09-18 10:56:12 UTC
FEDORA-2026-bb0d483289 (postgresql16-postgis-3.6.4-5.fc43, postgresql17-postgis-3.6.4-5.fc43, and 1 more) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-bb0d483289

Comment 3 Fedora Update System 2026-09-18 10:56:13 UTC
FEDORA-2026-490b1ed8ae (postgresql16-postgis-3.6.4-5.fc45, postgresql17-postgis-3.6.4-5.fc45, and 1 more) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-490b1ed8ae

Comment 4 Fedora Update System 2026-09-19 01:39:45 UTC
FEDORA-2026-490b1ed8ae has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-490b1ed8ae`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-490b1ed8ae

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-09-19 02:18:45 UTC
FEDORA-2026-0fe48ab374 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-0fe48ab374`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-0fe48ab374

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-09-19 02:22:41 UTC
FEDORA-2026-bb0d483289 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-bb0d483289`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-bb0d483289

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.


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