WebKit JSC JSObject::ensureLength Failure Check Vulnerability

WebKit JSC JSObject::ensureLength does not check if ensureLengthSlow fails. WebKit: JSC: JSObject::ensureLength doesn't check if ensureLengthSlow failed. CVE-2017-2521 Here's a snippet of JSObject::ensureLength. bool WARNUNUSEDRETURN ensureLengthVM& vm, unsigned length ASSERTlength vectorLength...

WebKit JSC - 'JSObject::ensureLength' ensureLengthSlow Check Failure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1165 Here's a snippet of JSObject::ensureLength. bool WARNUNUSEDRETURN ensureLengthVM& vm, unsigned length ASSERTlength vectorLength publicLength setPublicLengthlength; return result; |setPublicLength| is called whether...

WebKit JSC - Incorrect Check in emitPutDerivedConstructorToArrowFunctionContextScope

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1173 When a super expression is used in an arrow function, the following code, which generates bytecode, is called. if needsToUpdateArrowFunctionContext && !codeBlock-isArrowFunction bool canReuseLexicalEnvironment =...

WebKit JSC JSObject::ensureLength Failure Check

WebKit: JSC: JSObject::ensureLength doesn't check if ensureLengthSlow failed. CVE-2017-2521 Here's a snippet of JSObject::ensureLength. bool WARNUNUSEDRETURN ensureLengthVM& vm, unsigned length ASSERTlength vectorLength publicLength setPublicLengthlength; return result; |setPublicLength| is calle...

WebKit JSC emitPutDerivedConstructorToArrowFunctionContextScope Incorrect Check

WebKit: JSC: incorrect check in emitPutDerivedConstructorToArrowFunctionContextScope CVE-2017-2531 When a super expression is used in an arrow function, the following code, which generates bytecode, is called. if needsToUpdateArrowFunctionContext && !codeBlock-isArrowFunction bool...

WebKit JSC emitPutDerivedConstructorToArrowFunctionContextScope Incorrect Check Vulnerability

Exploit for multiple platform in category dos / poc WebKit: JSC: incorrect check in emitPutDerivedConstructorToArrowFunctionContextScope CVE-2017-2531 When a super expression is used in an arrow function, the following code, which generates bytecode, is called. if needsToUpdateArrowFunctionContex...

OracleVM 3.4 : qemu-kvm (OVMSA-2017-0101)

The remote OracleVM system is missing necessary patches to address critical security updates : - kvm-cirrus-avoid-write-only-variables.patch bz1444377 bz1444379 - kvm-cirrus-stop-passing-around-dst-pointers-in-the-blitt .patch - kvm-cirrus-stop-passing-around-src-pointers-in-the-blitt .patch -...

MS17-010 SMBv1 SrvOs2FeaToNt OOB Remote Code Execution

Exploit Author: Juan Sacco at KPN Red Team - http://www.kpn.com Date and time of release: May, 9 2017 - 13:00PM Found this and more exploits on my open source security project: http://www.exploitpack.com MS17-010 - https://technet.microsoft.com/en-us/library/security/ms17-010.aspx Tested on:...

Oracle Linux 6 : qemu-kvm (ELSA-2017-1206)

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-1206 advisory. - Resolves: bz1444377 CVE-2017-7980 qemu-kvm: Qemu: display: cirrus: OOB r/w access issues in bitblt routines rhel-6.9.z - Resolves: bz1444379...

Qemu: display: cirrus: OOB read access issue

An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions for example, cirrusbitbltropfwdtransp. A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in...

qemu-kvm security update

0.12.1.2-2.503.el69.3 - kvm-cirrus-avoid-write-only-variables.patch bz1444377 bz1444379 - kvm-cirrus-stop-passing-around-dst-pointers-in-the-blitt.patch bz1444377 bz1444379 - kvm-cirrus-stop-passing-around-src-pointers-in-the-blitt.patch bz1444377 bz1444379 -...

CVE-2017-3731 Truncated packet could crash via OOB read

If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; user...

Internet Bug Bounty: Certificate message OOB reads (CVE-2016-6306)

In OpenSSL 1.0.2 and earlier some missing message length checks can result in OOB reads of up to 2 bytes beyond an allocated buffer. There is a theoretical DoS risk but this has not been observed in practice on common platforms. The messages affected are client certificate, client certificate...

Internet Bug Bounty: OOB read in TS_OBJ_print_bio() (CVE-2016-2180)

The function TSOBJprintbio misuses OBJobj2txt: the return value is the total length the OID text representation would use and not the amount of data written. This will result in OOB reads when large OIDs are presented. refer: https://www.openssl.org/news/secadv/20160922.txt...

Internet Bug Bounty: OOB write in BN_bn2dec() (CVE-2016-2182)

The function BNbn2dec does not check the return value of BNdivword. This can cause an OOB write if an application uses this function with an overly large BIGNUM. This could be a problem if an overly large certificate or CRL is printed out from an untrusted source. TLS is not affected because reco...

Internet Bug Bounty: Malformed SHA512 ticket DoS (CVE-2016-6302)

If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a DoS attack where a malformed ticket will result in an OOB read which will ultimately crash. The use of SHA512 in TLS session tickets is comparatively rare as it requires a custom server callback and ticket lookup mechanism...

Internet Bug Bounty: OOB write in MDC2_Update() (CVE-2016-6303)

An overflow can occur in MDC2Update either if called directly or through the EVPDigestUpdate function using MDC2. If an attacker is able to supply very large amounts of input data after a previous call to EVPEncryptUpdate with a partial block then a length check can overflow resulting in a heap...

qemu-kvm security update

1.5.3-126.el73.6 - kvm-fix-cirrusvga-fix-OOB-read-case-qemu-Segmentation-f.patch bz1430059 - kvm-cirrus-vnc-zap-bitblit-support-from-console-code.patch bz1430059 - kvm-cirrus-add-option-to-disable-blitter.patch bz1430059 - kvm-cirrus-fix-cirrusinvalidateregion.patch bz1430059 -...

openSUSE Security Update : virglrenderer (openSUSE-2017-415)

This update for virglrenderer fixes the following issues : Security issues fixed : - CVE-2017-6386: memory leakage while in vrendcreatevertexelementsstate bsc1027376 - CVE-2017-6355: integer overflow while creating shader object bsc1027108 - CVE-2017-6317: fix memory leak in add shader program...

OracleVM 3.4 : qemu-kvm (OVMSA-2017-0055)

The remote OracleVM system is missing necessary patches to address critical security updates : - kvm-cirrus-fix-patterncopy-checks.patch bz1420487 bz1420489 - kvm-Revert-cirrus-allow-zero-source-pitch-in-pattern-fil .patch - kvm-cirrus-add-blitisunsafe-call-to-cirrusbitbltcput .patch - Resolves:...