A flaw was found in the way pipeiovcopyfromuser() and pipeiovcopytouser() functions handled iovecs remaining len accounting on failed atomic access.

An unprivileged local user could this flaw to crash the system or, potentially, escalate their privileges on the system.

Upstream fixes:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1

Acknowledgements:

The security impact of this issue was discovered by Red Hat.

Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects.

A flaw in libxml2 allows remote XML entity inclusion with default parser flags (i.e., when the caller did not request entity substitution, DTD validation, external DTD subset loading, or default DTD attributes). Depending on the context, this may expose a higher-risk attack surface in libxml2 not usually reachable with default parser flags, and expose content from local files, HTTP, or FTP servers (which might be otherwise unreachable).

A heap-based buffer overflow vulnerability in libxml2 in xmlValidateOneNamespace function due to incorrect casting was found.

Upstream bug (private at this moment):

https://bugzilla.gnome.org/showbug.cgi?id=780228

Oss-fuzz bug report:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=598

Android patch:

https://android.googlesource.com/platform/external/libxml2/+/521b88fbb6d18312923f0df653d045384b500ffc

References:

https://source.android.com/security/bulletin/2017-06-01#libraries

An information disclosure vulnerability in Bouncy Castle could enable a local malicious application to gain access to user’s private information.

Upstream bug:

https://github.com/bcgit/bc-java/issues/177

References:

https://source.android.com/security/bulletin/2016-01-01#informationdisclosurevulnerabilityinbouncycastle

The Widevine QSEE TrustZone application in Android 5.x before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to gain privileges via a crafted application that leverages QSEECOM access, aka internal bug 24446875.

Setup Wizard in Android 5.x before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows physically proximate attackers to modify settings or bypass a reset protection mechanism via unspecified vectors, aka internal bug 25290269.

The Imagination Technologies driver in Android 5.x before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to gain privileges via a crafted application, aka internal bug 24673908.

mediaserver in Android 5.x before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted media file, aka internal bugs 25070493 and 24686670.

SyncManager in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to cause a denial of service (continuous rebooting) via a crafted application, aka internal bug 23591205.

The WNM Sleep Mode code in wpasupplicant 2.x before 2.6 does not properly ignore key data in response frames when management frame protection (MFP) was not negotiated, which allows remote attackers to inject arbitrary broadcast or multicast packets or cause a denial of service (ignored packets) via a WNM Sleep Mode response.

The Widevine QSEE TrustZone application in Android 5.x before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to gain privileges via a crafted application that leverages QSEECOM access, aka internal bug 24441554.

The MediaTek misc-sd driver in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to gain privileges via a crafted application, aka internal bug 25307013.

The prctlsetvmaanonname function in kernel/sys.c in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 does not ensure that only one vma is accessed in a certain update action, which allows attackers to gain privileges or cause a denial of service (vma list corruption) via a crafted application, aka internal bug 20017123.

A Denial of Service vulnerability exists in Google Android 4.4.4, 5.0.2, and 5.1.1, which allows malicious users to block Bluetooh access (Android Bug ID A-28672558).

Last updated 24 July 2024

Expat, when used in a parser that has not called XMLSetHashSalt or passed it a seed of 0, makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via vectors involving use of the srand function.

It was reported that possible use-after-free vulnerability in keyring facility, possibly leading to local privilege escalation, was found. Function joinsessionkeyring in security/keys/processkeys.c holds a reference to the requested keyring, but if that keyring is the same as the one being currently used by the process, the kernel wouldn't decrease keyring->usage before returning to userspace. The usage field can be possibly overflowed causing use-after-free on the keyring object.

Introduced by: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a50597de8635cd05133bd12c95681c82fe7b878

References: http://perception-point.io/2016/01/14/analysis-and-exploitation-of-a-linux-kernel-vulnerability-cve-2016-0728/

Red Hat KCS article: https://access.redhat.com/articles/2131021

Upstream patch: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=23567fd052a9abb6d67fe8e7a9ccdd9800a540f2

A remote code execution vulnerability in the Android media framework (h263 decoder). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37660827.

A remote code execution vulnerability in the Android media framework (libhevc). Product: Android. Versions: 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37430213.

A elevation of privilege vulnerability in the Android media framework (mpeg4 encoder). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-36075363.

A elevation of privilege vulnerability in the Android framework (windowmanager). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-62196835.

A elevation of privilege vulnerability in the Android libraries (libminikin). Product: Android. Versions: 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0. Android ID: A-32178311.

A remote code execution vulnerability in the Android media framework (avc decoder). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37079296.

A elevation of privilege vulnerability in the Android media framework (libstagefright). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37237701.

A remote code execution vulnerability in the Android media framework (libjhead). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37776688.

A information disclosure vulnerability in the Android media framework (libhevc). Product: Android. Versions: 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37712181.

A elevation of privilege vulnerability in the Android media framework (libeffects). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37536407.

A denial of service vulnerability in the Android media framework (hevc decoder). Product: Android. Versions: 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37469795.

A elevation of privilege vulnerability in the Android media framework (libmediaplayerservice). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0. Android ID: A-38234812.