PT-2012-1046 · Debian · Hostapd

Timo Warns · Published 2012-10-10 · Updated 2023-02-13 · CVE-2012-4445

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions hostapd versions 0.6 through 1.0

Description The issue concerns multiple vulnerabilities in the hostapd package of the Debian GNU/Linux operating system, which can be exploited remotely to disrupt the availability of protected information. Specifically, a heap-based buffer overflow in the eap server tls process fragment function in eap server tls common.c can cause a denial of service (crash or abort) via a small "TLS Message Length" value in an EAP-TLS message with the "More Fragments" flag set.

Recommendations For hostapd versions 0.6 through 1.0, consider disabling the eap server tls process fragment function as a temporary workaround until a patch is available. Restrict access to the EAP authentication server to minimize the risk of exploitation. Avoid using the eap server tls process fragment function in the EAP-TLS message processing until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2015-03116

CVE-2012-4445

DSA-2557-1

Affected Products

Hostapd

References · 19

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4445 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2012-4445 · Vendor Advisory
• http://secunia.com/advisories/50888 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-03116 · Security Note
• http://debian.org/security/2012/dsa-2557 · Vendor Advisory
• http://freebsd.org/security/advisories/FreeBSD-SA-12:07.hostapd.asc · Vendor Advisory
• http://secunia.com/advisories/50805 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2012-4445 · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2012:168 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2012-4445 · Security Note
• https://osv.dev/vulnerability/CVE-2012-4445 · Vendor Advisory
• http://securityfocus.com/bid/55826 · Note
• http://securitytracker.com/id?1027808 · Note
• http://pre-cert.de/advisories/PRE-SA-2012-07.txt · Note
• http://osvdb.org/86051 · Note