CVE-2017-7377

Severity: medium (CVSS 6.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-04-10 · updated 2026-06-17
Weakness: CWE-772

Description

The (1) v9fs_create and (2) v9fs_lcreate functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid.

Affected products

Debian Linux: 8.0
QEMU: through 2.8.1; 2.9.0-rc0, 2.9.0-rc1

References

http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=d63fb193e71644a073b77ff5ac6f1216f2f6cf6e
http://www.openwall.com/lists/oss-security/2017/04/03/2
http://www.securityfocus.com/bid/97319
https://bugzilla.redhat.com/show_bug.cgi?id=1437871
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-03/msg05449.html
https://security.gentoo.org/glsa/201706-03
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=d63fb193e71644a073b77ff5ac6f1216f2f6cf6e
http://www.openwall.com/lists/oss-security/2017/04/03/2
http://www.securityfocus.com/bid/97319
https://bugzilla.redhat.com/show_bug.cgi?id=1437871
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html

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