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Debian Security Advisory 3266-1

Debian Security Advisory 3266-1
Posted May 21, 2015
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3266-1 - Tavis Ormandy discovered that FUSE, a Filesystem in Userspace, does not scrub the environment before executing mount or umount with elevated privileges. A local user can take advantage of this flaw to overwrite arbitrary files and gain elevated privileges by accessing debugging features via the environment that would not normally be safe for unprivileged users.

tags | advisory, arbitrary, local
systems | linux, debian
advisories | CVE-2015-3202
SHA-256 | c9b513c810f42744dffe969ba1742503b406d74fc6d9acf60cf4363bf131a9d5

Debian Security Advisory 3266-1

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Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3266-1 security@debian.org
http://www.debian.org/security/ Salvatore Bonaccorso
May 21, 2015 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : fuse
CVE ID : CVE-2015-3202

Tavis Ormandy discovered that FUSE, a Filesystem in USErspace, does not
scrub the environment before executing mount or umount with elevated
privileges. A local user can take advantage of this flaw to overwrite
arbitrary files and gain elevated privileges by accessing debugging
features via the environment that would not normally be safe for
unprivileged users.

For the oldstable distribution (wheezy), this problem has been fixed
in version 2.9.0-2+deb7u2.

For the stable distribution (jessie), this problem has been fixed in
version 2.9.3-15+deb8u1.

For the testing distribution (stretch) and the unstable distribution
(sid), this problem will be fixed soon.

We recommend that you upgrade your fuse 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
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