Access of Uninitialized Pointer Affecting qemu package, versions <1:2.11+dfsg-1ubuntu7.37
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Test your applications- Snyk ID SNYK-UBUNTU1804-QEMU-1311060
- published 17 Jun 2021
- disclosed 15 Jun 2021
Introduced: 15 Jun 2021
CVE-2021-3595 Open this link in a new tabHow to fix?
Upgrade Ubuntu:18.04 qemu to version 1:2.11+dfsg-1ubuntu7.37 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2021-3595
- https://security.netapp.com/advisory/ntap-20210805-0004/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/
- https://security.gentoo.org/glsa/202107-44
- https://bugzilla.redhat.com/show_bug.cgi?id=1970489
- https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html
- https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/