CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
AI Score
Confidence
Low
EPSS
Percentile
62.2%
Package : linux-2.6
Version : 2.6.32-48squeeze17
CVE ID : CVE-2013-7446 CVE-2015-7799 CVE-2015-7833 CVE-2015-7990
CVE-2015-8324
This update fixes the CVEs described below.
CVE-2013-7446
Dmitry Vyukov discovered that a particular sequence of valid
operations on local (AF_UNIX) sockets can result in a
use-after-free. This may be used to cause a denial of service
(crash) or possibly for privilege escalation.
CVE-2015-7799
郭永刚 discovered that a user granted access to /dev/ppp can cause
a denial of service (crash) by passing invalid parameters to the
PPPIOCSMAXCID ioctl. This also applies to ISDN PPP device nodes.
CVE-2015-7833
Sergej Schumilo, Hendrik Schwartke and Ralf Spenneberg discovered a
flaw in the processing of certain USB device descriptors in the
usbvision driver. An attacker with physical access to the system can
use this flaw to crash the system.
CVE-2015-7990
It was discovered that the fix for CVE-2015-6937 was incomplete. A
race condition when sending a message on unbound socket can still
cause a NULL pointer dereference. A remote attacker might be able to
cause a denial of service (crash) by sending a crafted packet.
CVE-2015-8324
"Valintinr" reported that an attempt to mount a corrupted ext4
filesystem may result in a kernel panic. A user permitted to
mount filesystems could use this flaw to crash the system.
For the oldoldstable distribution (squeeze), these problems have been
fixed in version 2.6.32-48squeeze17. We recommend that you upgrade your
linux-2.6 packages.
For the oldstable (wheezy) and stable (jessie) distributions,
CVE-2015-7833, CVE-2015-7990 and CVE-2015-8324 have been fixed and the
other issues will be fixed soon.
–
Ben Hutchings - Debian developer, member of Linux kernel and LTS teams
Attachment:
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Description: This is a digitally signed message part
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
AI Score
Confidence
Low
EPSS
Percentile
62.2%