Memory leak in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory…

Description

Memory leak in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in FileOperations.

Scores

EPSS (exploitation in 30 days)

0.43% · top 63% of all CVEs (2 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

• n/a
• CWE-401 (opens in a new tab)

Affected products

• n/a

  • affected n/a

References (7)

• [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 94729 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• [qemu-devel] 20161116 [PATCH v3 0/4] 9pfs: add cleanup operation in handle/proxy backend (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• GLSA-201701-49 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• [oss-security] 20161207 CVE request Qemu: 9pfs: memory leakage via proxy/handle callbacks (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [oss-security] 20161208 Re: CVE request Qemu: 9pfs: memory leakage via proxy/handle callbacks (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=702dbcc274e2ca43be20ba64c758c0ca57dab91d (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Record last updated 6 Aug 2024, 03:07 UTC.