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THREATINT
PUBLISHED

CVE-2025-7209

9fans plan9port x509.c value_decode null pointer dereference



Description

EN DE

A vulnerability has been found in 9fans plan9port up to 9da5b44 and classified as problematic. Affected by this vulnerability is the function value_decode in the library src/libsec/port/x509.c. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The identifier of the patch is deae8939583d83fd798fca97665e0e94656c3ee8. It is recommended to apply a patch to fix this issue.

In 9fans plan9port bis 9da5b44 wurde eine Schwachstelle gefunden. Sie wurde als problematisch eingestuft. Betroffen ist die Funktion value_decode in der Bibliothek src/libsec/port/x509.c. Durch das Manipulieren mit unbekannten Daten kann eine null pointer dereference-Schwachstelle ausgenutzt werden. Der Angriff muss lokal angegangen werden. Der Exploit steht zur öffentlichen Verfügung. Dieses Produkt setzt Rolling Releases ein. Aus diesem Grund sind Details zu betroffenen oder zu aktualisierende Versionen nicht verfügbar. Der Patch wird als deae8939583d83fd798fca97665e0e94656c3ee8 bezeichnet. Als bestmögliche Massnahme wird Patching empfohlen.

Reserved 2025-07-07 | Published 2025-07-09 | Updated 2025-07-09 | Assigner VulDB


MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

NULL Pointer Dereference

Denial of Service

Product status

9da5b44
affected

Timeline

2025-07-07:Advisory disclosed
2025-07-07:VulDB entry created
2025-07-07:VulDB entry last update

Credits

JJLeo (VulDB User) reporter

References

vuldb.com/?id.315157 (VDB-315157 | 9fans plan9port x509.c value_decode null pointer dereference) vdb-entry technical-description

vuldb.com/?ctiid.315157 (VDB-315157 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.607685 (Submit #607685 | 9fans plan9port plan9port-20250329 (commit 9da5b44) NULL Pointer Dereference) third-party-advisory

github.com/9fans/plan9port/issues/711 issue-tracking

github.com/9fans/plan9port/issues/711 issue-tracking

github.com/...tachments/files/19698361/plan9port_crash_2.txt exploit

git.9front.org/...3d83fd798fca97665e0e94656c3ee8/commit.html patch

cve.org (CVE-2025-7209)

nvd.nist.gov (CVE-2025-7209)

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