An off-by-one error in ngx_resolver_copy() while processing DNS responses allows a network attacker to write a dot character ('.', 0x2E) out of bounds in a heap allocated buffer. The vulnerability can be triggered by a DNS response in reply to a DNS request from nginx when the resolver primitive is configured. A specially crafted packet allows overwriting the least significant byte of next heap chunk metadata with 0x2E. A network attacker capable of providing DNS responses to a nginx server can achieve Denial-of-Service and likely remote code execution. Due to the lack of DNS spoofing mitigations in nginx and the fact that the vulnerable function is called before checking the DNS Transaction ID, remote attackers might be able to exploit this vulnerability by flooding the victim server with poisoned DNS responses in a feasible amount of time.
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Multiple bugs were found in the code handling fax page reception in JPEG format that allow arbitrary writes to an uninitialized pointer by remote parties dialing in. When processing an specially crafted input, the issue could lead to remote code execution. HylaFAX versions 6.0.6 and 5.6.0 are affected.
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PSFTPd Windows FTP Server version 10.0.4 Build 729 suffers from use-after-free, log injection, and various other vulnerabilities.
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A remote attacker may crash or execute arbitrary code in libotr by sending large OTR messages. While processing specially crafted messages, attacker controlled data on the heap is written out of bounds. No special user interaction or authorization is necessary in default configurations. libotr versions 4.1.0 and below are affected.
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A stack overflow was discovered when serializing data via the Data::Dumper extension which is part of Perl-Core. By using the "Dumper" method on a large Array-Reference which recursively contains other Array-References, it is possible to cause many recursive calls to the DD_dump native function and ultimately exhaust all available stack memory.
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Check_MK suffers from an arbitrary file disclosure vulnerability.
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LSE discovered that the installer of the Information Enterprise Server (IES) was available to unauthenticated users over HTTP. When updating from previous versions of IES, an installation form was not disabled after installation. In this case the servlet "/ies/install" was exposed to unauthenticated users. By accessing the servlet at URI "/ies/install/" on an affected IES server, an unauthenticated attacker was able to set a new password for the manager account. Additionally sensitive information regarding the IES installation was displayed.
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rsyslog ElasticSearch plugin suffers from a double free memory corruption. rsyslog versions 7.4.0 stable through 7.4.1 stable and 7.3.2 devel through 7.5.1 devel are affected.
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Avira AntiVir Engine versions prior to 8.2.12.58 suffers from filter evasion and denial of service vulnerabilities.
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By supplying a NULL-byte to the PyPAM module, a double-free condition is triggered. This condition may allow for remote code execution. Proof of concept included.
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