ID de Prueba:	1.3.6.1.4.1.25623.1.1.10.2017.0396
Categoría:	Mageia Linux Local Security Checks
Título:	Mageia: Security Advisory (MGASA-2017-0396)
Resumen:	The remote host is missing an update for the 'wget' package(s) announced via the MGASA-2017-0396 advisory.
Descripción:	Summary: The remote host is missing an update for the 'wget' package(s) announced via the MGASA-2017-0396 advisory. Vulnerability Insight: The http.c:skip_short_body() function is called in some circumstances, such as when processing redirects. When the response is sent chunked, 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 (CVE-2017-13089). The retr.c:fd_read_body() function is called when processing OK responses. When the response is sent chunked, 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 (CVE-2017-13090). Affected Software/OS: 'wget' package(s) on Mageia 5, Mageia 6. Solution: Please install the updated package(s). CVSS Score: 9.3 CVSS Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2017-13089 BugTraq ID: 101592 http://www.securityfocus.com/bid/101592 Debian Security Information: DSA-4008 (Google Search) http://www.debian.org/security/2017/dsa-4008 https://security.gentoo.org/glsa/201711-06 https://github.com/r1b/CVE-2017-13089 https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html RedHat Security Advisories: RHSA-2017:3075 https://access.redhat.com/errata/RHSA-2017:3075 http://www.securitytracker.com/id/1039661 Common Vulnerability Exposure (CVE) ID: CVE-2017-13090 BugTraq ID: 101590 http://www.securityfocus.com/bid/101590
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