{"containers": {"cna": {"affected": [{"platforms": ["any"], "product": "Wget", "vendor": "GNU Project", "versions": [{"status": "affected", "version": "prior to 1.19.2"}]}], "credits": [{"lang": "en", "value": "Antti Levom\u00e4ki, Christian Jalio, Joonas Pihlaja from Forcepoint"}], "datePublic": "2017-10-27T00:00:00", "descriptions": [{"lang": "en", "value": "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(). 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{"acknowledgement": "Red Hat would like to thank the GNU Wget project for reporting this issue.", "affected_release": [{"advisory": "RHSA-2017:3075", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "wget-0:1.14-15.el7_4.1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-10-26T00:00:00Z"}], "bugzilla": {"description": "wget: Stack-based buffer overflow in HTTP protocol handling", "id": "1505444", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1505444"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-121", "details": ["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.", "A stack-based buffer overflow when processing chunked, encoded HTTP responses was found in wget. By tricking an unsuspecting user into connecting to a malicious HTTP server, an attacker could exploit this flaw to potentially execute arbitrary code."], "name": "CVE-2017-13089", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "wget", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "wget", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2017-10-26T15:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-13089\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-13089\nhttps://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html"], "statement": "This issue affects the versions of wget as shipped with Red Hat Enterprise Linux 7. This issue did not affect the versions of wget as shipped with Red Hat Enterprise Linux 5 and 6.", "threat_severity": "Important"}