Home CVE Database CVE-2017-13090

CVE-2017-13090

Description

The retr.c:fd_read_body() function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk\'s length, but doesn\'t check that the chunk length is a non-negative number. The code then tries to read the chunk in pieces of 8192 bytes by using the MIN() macro, but ends up passing the negative chunk length to retr.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument. The attacker can corrupt malloc metadata after the allocated buffer.

Priority: HIGH
CVSS v3: 8.8
Publish Date: Oct 27, 2017
Related ID: --
CVSS v2: High
Modified Date: Oct 28, 2017

Find out more about CVE-2017-13090 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Related Products

Product Name Status Defect Fixed Downloads
Linux 7 SCP Not Vulnerable -- -- --
Linux 7 CGP Not Vulnerable -- -- --

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