- -------------------------------------------------------------------------
Debian Security Advisory DSA-3390-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
November 02, 2015                     https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : xen
CVE ID         : CVE-2015-7835

It was discovered that the code to validate level 2 page table entries
is bypassed when certain conditions are satisfied. A malicious PV guest
administrator can take advantage of this flaw to gain privileges via a
crafted superpage mapping.

For the oldstable distribution (wheezy), this problem has been fixed
in version 4.1.4-3+deb7u9.

For the stable distribution (jessie), this problem has been fixed in
version 4.4.1-9+deb8u2.

We recommend that you upgrade your xen packages.

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

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-3390-1: xen security update

November 2, 2015
It was discovered that the code to validate level 2 page table entries is bypassed when certain conditions are satisfied

Summary

For the oldstable distribution (wheezy), this problem has been fixed
in version 4.1.4-3+deb7u9.

For the stable distribution (jessie), this problem has been fixed in
version 4.4.1-9+deb8u2.

We recommend that you upgrade your xen packages.

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

Mailing list: debian-security-announce@lists.debian.org

Severity
It was discovered that the code to validate level 2 page table entries
is bypassed when certain conditions are satisfied. A malicious PV guest
administrator can take advantage of this flaw to gain privileges via a
crafted superpage mapping.

Related News

5.ShakingHands Esm H320
2 - 3 min read
At The Linux Foundation's Open Source Summit North America , Linus Torvalds, the creator of Linux, discussed various topics related to Linux
30.Lock Globe Motherboard Esm H320
1 - 2 min read
The SPDX 3.0 release marks a significant milestone in software management, particularly for Linux admins, infosec professionals, internet security
11.Locks IsometricPattern Esm H320
2 - 3 min read
Open Source maintainers and developers have been warned about the continued wave of attacks aimed at project maintainers similar to those recently
28.Lock Globe Esm H320
1 - 2 min read
A resurgence of cyberattacks targeting Linux systems in Asian campaigns through the utilization of the Pupy Remote Access Trojan (RAT) has been
27.Tablet Connections Blocks Lock Esm H320
2 - 4 min read
Canonical has recently announced the Beta release of Ubuntu Linux 24.04 LTS , codenamed "Noble Numbat." This release aims to continue Ubuntu's
21.Globe RadiatingCode Esm H320
2 - 3 min read
The open-source movement has come a long way, from its origins in the 1960s and 1970s to becoming an integral part of organizations worldwide.
13.Lock StylizedMotherboard Esm H320
2 - 3 min read
The Rust-based Edera project demonstrates a unique approach to container security that addresses cloud-native computing challenges. Let's examine
8.Locks HexConnections CodeGlobe Esm H320
2 - 3 min read
Canonical has launched Ubuntu Pro for Devices , a comprehensive offering emphasizing security and compliance for IoT device deployments. This
Sign Up