CVE-2017-13089 (GCVE-0-2017-13089)

Vulnerability from cvelistv5 – Published: 2017-10-27 19:00 – Updated: 2024-09-17 01:15
VLAI?
Title
GNU Wget: stack overflow in HTTP protocol handling
Summary
The http.c:skip_short_body() function is called in some circumstances, such as when processing redirects. 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 skip the chunk in pieces of 512 bytes by using the MIN() macro, but ends up passing the negative chunk length to connect.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.
Severity ?
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
GNU Project Wget Affected: prior to 1.19.2
Create a notification for this product.
Credits
Antti Levomäki, Christian Jalio, Joonas Pihlaja from Forcepoint
Show details on NVD website
To clipboard 

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