PatchFirst · Aktuelle Sicherheitslücken
In den letzten 30 Tagen veröffentlichte Sicherheitslücken für catdoc: 2. Davon im KEV-Katalog: 0.
Sicherheitslücken: 15
catdoc through 0.95 contains an out-of-bounds read vulnerability in copy_unicode_string() in src/xlsparse.c that allows attackers to read past buffers via an unchecked string character count. Attackers can supply a crafted .xls file declaring 0xFFFF two-byte characters in LABEL, STRING, or SST records to disclose adjacent memory through xls2csv output or crash the process.
catdoc through 0.95 contains an out-of-bounds read vulnerability in the MULRK record handler of process_item() in src/xlsparse.c that allows attackers to read past the static rec buffer via a crafted end column. Attackers can supply a crafted .xls workbook or BIFF stream with a large endcol to xls2csv to disclose adjacent process memory as CSV cells or crash the process.
catdoc - security update
A memory corruption vulnerability exists in the Shared String Table Record Parser implementation in xls2csv utility version 0.95. A specially crafted malformed file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
An integer overflow vulnerability exists in the OLE Document File Allocation Table Parser functionality of catdoc 0.95. A specially crafted malformed file can lead to heap-based memory corruption. An attacker can provide a malicious file to trigger this vulnerability.
An integer underflow vulnerability exists in the OLE Document DIFAT Parser functionality of catdoc 0.95. A specially crafted malformed file can lead to heap-based memory corruption. An attacker can provide a malicious file to trigger this vulnerability.
Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/xlsparse.c.
Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/fileutil.c.
Catdoc v0.95 was discovered to contain a global buffer overflow via the function process_file at /src/reader.c.
In libdoc through 2019-01-28, doc2text in catdoc.c has a NULL pointer dereference.
In libdoc through 2019-01-28, calcFileBlockOffset in ole.c allows division by zero.
The getlong function in numutils.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.
The process_file function in reader.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.
The ole_init function in ole.c in catdoc 0.95 allows remote attackers to cause a denial of service (heap-based buffer underflow and application crash) or possibly have unspecified other impact via a crafted file, i.e., data is written to memory addresses before the beginning of the tmpBuf buffer.
msxlsview.sh in xlsview for catdoc 0.91 and earlier allows local users to overwrite arbitrary files via a symlink attack on predictable temporary file names ("word$$.html").
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