Qemu: display: cirrus: OOB read access issue

hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.

wireshark: SLSK dissector long loop (wnpa-sec-2017-19)

In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the SLSK dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-slsk.c by adding checks for the remaining length.

wireshark: PacketBB dissector crash (wnpa-sec-2017-18)

In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the PacketBB dissector could crash, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-packetbb.c by restricting additions to the protocol tree.

mercurial: Python debugger accessible to authorized users

In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch the Python debugger, and consequently execute arbitrary code, by using --debugger as a repository name.

samba: fd_open_atomic infinite loop due to wrong handling of dangling symlinks

smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability (fd_open_atomic infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks.

poppler: Memory leak in the Object::initArray function

In Poppler 0.54.0, a memory leak vulnerability was found in the function Object::initArray in Object.cc, which allows attackers to cause a denial of service via a crafted file.

poppler: Memory leak in the gmalloc function in gmem.cc

In Poppler 0.54.0, a memory leak vulnerability was found in the function gmalloc in gmem.cc, which allows attackers to cause a denial of service via a crafted file.

wireshark: BT L2CAP dissector divide by zero (wnpa-sec-2017-29)

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the Bluetooth L2CAP dissector could divide by zero. This was addressed in epan/dissectors/packet-btl2cap.c by validating an interval value.

kernel: Handling of might_cancel queueing is not properly pretected against race

Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.

Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort

qemu-nbd in QEMU (aka Quick Emulator) does not ignore SIGPIPE, which allows remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt.

perl-XML-LibXML: Use-after-free by controlling the arguments to a replaceChild call

Use-after-free in the XML-LibXML module through 2.0129 for Perl allows remote attackers to execute arbitrary code by controlling the arguments to a replaceChild call.

Qemu: usb-redirect: stack buffer overflow in debug logging

Stack-based buffer overflow in hw/usb/redirect.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (QEMU process crash) via vectors related to logging debug messages.

Kernel: virtio-gpu: memory leakage while creating gpu object

Memory leak in the virtio_gpu_object_create function in drivers/gpu/drm/virtio/virtgpu_object.c in the Linux kernel through 4.11.8 allows attackers to cause a denial of service (memory consumption) by triggering object-initialization failures.

freeradius: Out-of-bounds read/write due to improper output buffer size check in make_secret()

An FR-GV-201 issue in FreeRADIUS 2.x before 2.2.10 and 3.x before 3.0.15 allows "Read / write overflow in make_secret()" and a denial of service.

krb5: Metadata taken from the unauthenticated plaintext

Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus' Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification. In _krb5_extract_ticket() the KDC-REP service name must be obtained from the encrypted version stored in 'enc_part' instead of the unencrypted version stored in 'ticket'. Use of the unencrypted version provides an opportunity for successful server impersonation and other attacks. NOTE: this CVE is only for Heimdal and other products that embed Heimdal code; it does not apply to other instances in which this part of the Kerberos 5 protocol specification is violated.

Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check.

phpLDAPadmin through 1.2.3 has XSS in htdocs/entry_chooser.php via the form, element, rdn, or container parameter.

GraphicsMagick 1.3.26 has double free vulnerabilities in the ReadOneJNGImage() function in coders/png.c.

Missing anchor in generated regex for rack-cors before 0.4.1 allows a malicious third-party site to perform CORS requests. If the configuration were intended to allow only the trusted example.com domain name and not the malicious example.net domain name, then example.com.example.net (as well as example.com-example.net) would be inadvertently allowed.

kernel: Use-after-free in sys_mq_notify()

The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.