The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the netlinknscapable() function in the net/netlink/afnetlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.
It was found that Diffie Hellman Client key exchange handling in NSS 3.21.x was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.
An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions past bounds check.
It relies on the presence of a precisely-defined instruction sequence in the privileged code and the fact that memory writes occur to an address which depends on the untrusted value. Such writes cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire).
As a result, an unprivileged attacker could use this flaw to influence speculative execution and/or read privileged memory by conducting targeted cache side-channel attacks.
Last updated 24 July 2024
Oracle Java SE 6u181 and 7u171 fixes an unspecified vulnerability in the Serialization component (CVE-2018-2657). Upstream has CVSS scored this issue as: 5.3/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
External Reference:
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html#AppendixJAVA
It was discovered that the Hotspot component of OpenJDK failed to properly validate uses of the invokeinterface Java Virtual Machine instruction. An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions.
It was discovered that the DNS client implementation in the JNDI component of OpenJDK did not use random source ports when sending out DNS queries. This would make it easier for a remote attacker to spoof responses to those queries.
It was discovered that the I18n component of OpenJDK could use an untrusted search path when loading resource bundle classes. A local attacker could possibly use this flaw to execute arbitrary code as another local user by making their Java application load an attacker controlled class file.
It was discovered that the LdapLoginModule class in the LDAP component of OpenJDK failed to properly encode special characters in user names when adding them to LDAP search query. A remote attacker could possibly use this flaw to manipulate LDAP queries performed by the LdapLoginModule class.
It was discovered that multiple encryption key classes (DESKey, DESedeKey, PBEKey, PBKDF2KeyImpl) in the crypto provider in the Libraries component of OpenJDK did not properly synchronize access to their internal key data from multiple threads. This could possibly cause a multi-threaded Java application to apply weak encryption to data because of use of key that was zeroed out during object finalization.
Last updated 24 July 2024
Last updated 24 July 2024
Last updated 24 July 2024
On pages containing an iframe, the "data:" protocol can be used to create a modal alert that will render over arbitrary domains following page navigation, spoofing of the origin of the modal alert from the iframe content. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
ntpq in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash) via crafted mode 6 response packets.
The cryptoxmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash). NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: DML). Supported versions that are affected are 5.5.56 and earlier, 5.6.36 and earlier and 5.7.18 and earlier. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html#AppendixMSQL
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Client programs). Supported versions that are affected are 5.5.56 and earlier and 5.6.36 and earlier. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of MySQL Server accessible data as well as unauthorized read access to a subset of MySQL Server accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html#AppendixMSQL
Poppler has a stack-based buffer overflow in GfxState.cc, which allows attackers to cause a denial of service (application crash) via a crafted PDF document.
Upstream issue:
https://bugs.freedesktop.org/showbug.cgi?id=101540
Upstream patch:
https://cgit.freedesktop.org/poppler/poppler/commit/?id=8f4ff8243a3d599ff2a6c08b1da389e606ba4fc9
A query with a specific set of characteristics could cause a server using DNS64 to encounter an assertion failure and terminate. An attacker could deliberately construct a query, enabling denial-of-service against a server if it was configured to use the DNS64 feature and other preconditions were met.
Servers are at risk if they are configured to use DNS64 and if the option "break-dnssec yes;" is in use.
External References:
https://kb.isc.org/article/AA-01465
Mitigation:
Servers which have configurations which require DNS64 and "break-dnssec yes;" should upgrade. Servers which are not using these features in conjunction are not at risk from this defect.
Using SVG filters that don't use the fixed point math implementation on a target iframe, a malicious page can extract pixel values from a targeted user. This can be used to extract history information and read text values across domains. This violates same-origin policy and leads to information disclosure.
Video files loaded video captions cross-origin without checking for the presence of CORS headers permitting such cross-origin use, leading to potential information disclosure for video captions.
Certain response codes in FTP connections can result in the use of uninitialized values for ports in FTP operations.
An out-of-bounds memory access issue was found in Quick Emulator (QEMU) before 1.7.2 in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vncrefreshserversurface'. A user inside a guest could use this flaw to crash the QEMU process.
It was discovered that libICE before 1.0.9-8 used a weak entropy to generate keys. A local attacker could potentially use this flaw for session hijacking using the information available from the process list.
It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.
A race condition was found in util-linux before 2.32.1 in the way su handled the management of child processes. A local authenticated attacker could use this flaw to kill other processes with root privileges under specific conditions.
URLs containing certain unicode glyphs for alternative hyphens and quotes do not properly trigger punycode display, allowing for domain name spoofing attacks in the location bar.
Event handlers on "marquee" elements were executed despite a strict Content Security Policy (CSP) that disallowed inline JavaScript. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.