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Files from Jakub Jirasek

First Active2017-01-31
Last Active2018-11-28
FreeBSD Security Advisory - FreeBSD-SA-18:13.nfs
Posted Nov 28, 2018
Authored by Jakub Jirasek | Site security.freebsd.org

FreeBSD Security Advisory - Insufficient and improper checking in the NFS server code could cause a denial of service or possibly remote code execution via a specially crafted network packet. A remote attacker could cause the NFS server to crash, resulting in a denial of service, or possibly execute arbitrary code on the server.

tags | advisory, remote, denial of service, arbitrary, code execution
systems | freebsd, bsd
advisories | CVE-2018-17157, CVE-2018-17158, CVE-2018-17159
MD5 | c429bab0bdb3143934610a88f982eccd
Linux Kernel _sctp_make_chunk() Denial Of Service
Posted Mar 1, 2018
Authored by Jakub Jirasek | Site secunia.com

Secunia Research has discovered a vulnerability in Linux Kernel, which can be exploited by malicious, local users to cause a DoS (Denial of Service). An error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash. The vulnerability is confirmed in versions 4.15.0-r7 and 4.15.0. Other versions may also be affected.

tags | advisory, denial of service, kernel, local
systems | linux
advisories | CVE-2018-5803
MD5 | 032813c00d31d2638e48345378f9298a
FLAC 1.3.2 read_metadata_vorbiscomment_() Memory Leak / DoS
Posted May 15, 2017
Authored by Jakub Jirasek | Site secunia.com

Secunia Research has discovered a vulnerability in FLAC, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due to an error in the "read_metadata_vorbiscomment_()" function (stream_decoder.c), which can be exploited to cause a memory leak via a specially crafted FLAC file. The vulnerability is confirmed in version 1.3.2. Other versions may also be affected.

tags | advisory, denial of service, memory leak
advisories | CVE-2017-6888
MD5 | 07426242d2126fc7f266229556f63d1c
LibRaw 0.18.1 parse_tiff_ifd() Memory Corruption
Posted May 15, 2017
Authored by Jakub Jirasek | Site secunia.com

LibRaw version 0.18.1 suffers from a parse_tiff_ifd() memory corruption vulnerability.

tags | advisory
advisories | CVE-2017-6886
MD5 | 299b981227be2dfd96bb48fa99e6e324
Libarchive 3.2.2 lha_read_file_header_1() Denial Of Service
Posted Jan 31, 2017
Authored by Jakub Jirasek | Site secunia.com

Secunia Research has discovered a vulnerability in libarchive, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due to an error in the "lha_read_file_header_1()" function (archive_read_support_format_lha.c), which can be exploited to trigger an out-of-bounds read memory access via a specially crafted archive. The vulnerability is confirmed in version 3.2.2. Other versions may also be affected.

tags | advisory, denial of service
advisories | CVE-2017-5601
MD5 | 7f2b1a06172c64fbfccd3249ba848140
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