Debian Long Term Support / LTS Security Information / 2019 / Security Information -- DLA-1646-1 qemu

Debian Security Advisory

DLA-1646-1 qemu -- LTS security update

Date Reported:

29 Jan 2019

Affected Packages:

qemu

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2018-17958, CVE-2018-19364, CVE-2018-19489.

More information:

Several vulnerabilities were found in QEMU, a fast processor emulator:

• CVE-2018-17958

  The rtl8139 emulator is affected by an integer overflow and subsequent buffer overflow. This vulnerability might be triggered by remote attackers with crafted packets to perform denial of service (via OOB stack buffer access).

• CVE-2018-19364

  The 9pfs subsystem is affected by a race condition allowing threads to modify an fid path while it is being accessed by another thread, leading to (for example) a use-after-free outcome. This vulnerability might be triggered by local attackers to perform denial of service.

• CVE-2018-19489

  The 9pfs subsystem is affected by a race condition during file renaming. This vulnerability might be triggered by local attackers to perform denial of service.

For Debian 8 Jessie, these problems have been fixed in version 1:2.1+dfsg-12+deb8u9.

We recommend that you upgrade your qemu packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS