ImageMagick: NULL pointer dereference in ReadCUTImage function

In ImageMagick 7.0.6-10, a NULL Pointer Dereference issue is present in the ReadCUTImage function in coders/cut.c that could allow an attacker to cause a Denial of Service (in the QueueAuthenticPixelCacheNexus function within the MagickCore/cache.c file) by submitting a malformed image file.

dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code

Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request.

ImageMagick: Invalid memory allocation in the ReadWPGImage function

The ReadWPGImage function in coders/wpg.c in ImageMagick 7.0.7-9 does not properly validate the colormap index in a WPG palette, which allows remote attackers to cause a denial of service (use of uninitialized data or invalid memory allocation) or possibly have unspecified other impact via a malformed WPG file.

kernel: null pointer dereference in nl80211_set_rekey_data()

A security flaw was discovered in the nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This function does not check whether the required attributes are present in a Netlink request. This request can be issued by a user with the CAP_NET_ADMIN capability and may result in a NULL pointer dereference and system crash.

exiv2: Reachable assertion in the Internal::TiffReader::visitDirectory function

There is a reachable assertion in the Internal::TiffReader::visitDirectory function in tiffvisitor.cpp of Exiv2 0.26 that will lead to a remote denial of service attack via crafted input.

kernel: Buffer overflow in mp_override_legacy_irq()

Buffer overflow in the mp_override_legacy_irq() function in arch/x86/kernel/acpi/boot.c in the Linux kernel through 3.2 allows local users to gain privileges via a crafted ACPI table.

exiv2: Floating point exception in the Exiv2::ValueType function

There is a Floating point exception in the Exiv2::ValueType function in Exiv2 0.26 that will lead to a remote denial of service attack via crafted input.

Solr: Code execution via entity expansion

Remote code execution occurs in Apache Solr before 7.1 with Apache Lucene before 7.1 by exploiting XXE in conjunction with use of a Config API add-listener command to reach the RunExecutableListener class. Elasticsearch, although it uses Lucene, is NOT vulnerable to this. Note that the XML external entity expansion vulnerability occurs in the XML Query Parser which is available, by default, for any query request with parameters deftype=xmlparser and can be exploited to upload malicious data to the /upload request handler or as Blind XXE using ftp wrapper in order to read arbitrary local files from the Solr server. Note also that the second vulnerability relates to remote code execution using the RunExecutableListener available on all affected versions of Solr.

nasm: Use-after-free in the detoken() function

In Netwide Assembler (NASM) 2.14rc0, there are multiple heap use after free vulnerabilities in the tool nasm. The related heap is allocated in the token() function and freed in the detoken() function (called by pp_getline()) - it is used again at multiple positions later that could cause multiple damages. For example, it causes a corrupted double-linked list in detoken(), a double free or corruption in delete_Token(), and an out-of-bounds write in detoken(). It has a high possibility to lead to a remote code execution attack.

nasm: Heap buffer overflow in the preproc.c

In Netwide Assembler (NASM) 2.14rc0, preproc.c allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.

Kernel: KVM: DoS via write flood to I/O port 0x80

The Linux Kernel 2.6.32 and later are affected by a denial of service, by flooding the diagnostic port 0x80 an exception can be triggered leading to a kernel panic.

ubuntu-image 1.0 before 2017-07-07, when invoked as non-root, creates files in the resulting image with the uid of the invoking user. When the resulting image is booted, a local attacker with the same uid as the image creator has unintended access to cloud-init and snapd directories.

ImageMagick: Improper EOF handling in coders/rle.c can trigger crash (Incomplete fix for CVE-2017-9144)

In ImageMagick before 7.0.5-10, a crafted RLE image can trigger a crash because of incorrect EOF handling in coders/rle.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-9144.

ImageMagick: Memory exhaustion in ReadOneLayer function in coders/xcf.c

The ReadOneLayer function in coders/xcf.c in ImageMagick 7.0.6-6 allows remote attackers to cause a denial of service (memory consumption) via a crafted file.

rubygems: Arbitrary file overwrite due to incorrect validation of specification name

RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.

exim: Possible information disclosure to remote atacker

Exim before 4.87.1 might allow remote attackers to obtain the private DKIM signing key via vectors related to log files and bounce messages.

rubygems: DNS hijacking vulnerability

RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls.

zlib: Big-endian out-of-bounds pointer

The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.

rubygems: Unsafe object deserialization through YAML formatted gem specifications

RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.

libjpeg-turbo: denial of service via specially-crafted JPEG file

libjpeg-turbo before 1.3.1 allows remote attackers to cause a denial of service (crash) via a crafted JPEG file, related to the Exif marker.