CVE-2017-13090
Vulnerability from cvelistv5
Published
2017-10-27 19:00
Modified
2024-09-16 18:23
Severity ?
8.8 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
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.
References
cret@cert.orghttp://git.savannah.gnu.org/cgit/wget.git/commit/?id=ba6b44f6745b14dce414761a8e4b35d31b176bbaIssue Tracking, Patch, Third Party Advisory
cret@cert.orghttp://www.debian.org/security/2017/dsa-4008Issue Tracking, Third Party Advisory
cret@cert.orghttp://www.securityfocus.com/bid/101590Issue Tracking, Third Party Advisory, VDB Entry
cret@cert.orghttp://www.securitytracker.com/id/1039661Issue Tracking, Third Party Advisory, VDB Entry
cret@cert.orghttps://access.redhat.com/errata/RHSA-2017:3075
cret@cert.orghttps://security.gentoo.org/glsa/201711-06Issue Tracking, Third Party Advisory
cret@cert.orghttps://www.synology.com/support/security/Synology_SA_17_62_Wget
cret@cert.orghttps://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.htmlIssue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://git.savannah.gnu.org/cgit/wget.git/commit/?id=ba6b44f6745b14dce414761a8e4b35d31b176bbaIssue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2017/dsa-4008Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/101590Issue Tracking, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039661Issue Tracking, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:3075
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201711-06Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.synology.com/support/security/Synology_SA_17_62_Wget
af854a3a-2127-422b-91ae-364da2661108https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.htmlIssue Tracking, Patch, Third Party Advisory
Impacted products
Vendor Product Version
GNU Project Wget Version: prior to 1.19.2
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