174200 2007-04-11 19:58 0000 net-misc/tightvnc includes vulnerable X.Org code (CVE-2007-{135{1|2}|1003}) 2007-05-08 20:06:32 0000 1 1 1 Unclassified Gentoo Security Vulnerabilities unspecified All Linux RESOLVED FIXED http://www.securityfocus.com/archive/1/465327/30/0/ B1? [glsa] jaervosz P2 major --- 1 jaervosz@gentoo.org security@gentoo.org armin76@gentoo.org jaervosz@gentoo.org 2007-04-11 19:58:01 0000 Seems like it shares some of the same code making it vulnerable to issue on bug #172575. Mandriva Linux Security Advisory MDKSA-2007:080-1 http://www.mandriva.com/security/ _______________________________________________________________________ Package : tightvnc Date : April 10, 2007 Affected: 2007.1 _______________________________________________________________________ Problem Description: Local exploitation of a memory corruption vulnerability in the X.Org and XFree86 X server could allow an attacker to execute arbitrary code with privileges of the X server, typically root. The vulnerability exists in the ProcXCMiscGetXIDList() function in the XC-MISC extension. This request is used to determine what resource IDs are available for use. This function contains two vulnerabilities, both result in memory corruption of either the stack or heap. The ALLOCATE_LOCAL() macro used by this function allocates memory on the stack using alloca() on systems where alloca() is present, or using the heap otherwise. The handler function takes a user provided value, multiplies it, and then passes it to the above macro. This results in both an integer overflow vulnerability, and an alloca() stack pointer shifting vulnerability. Both can be exploited to execute arbitrary code. (CVE-2007-1003) iDefense reported two integer overflows in the way X.org handled various font files. A malicious local user could exploit these issues to potentially execute arbitrary code with the privileges of the X.org server. (CVE-2007-1351, CVE-2007-1352) TightVNC uses some of the same code base as Xorg, and has the same vulnerable code. Updated packages are patched to address these issues. Update: Packages for Mandriva Linux 2007.1 are now available. _______________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1003 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1351 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1352 _____________________________________________________ armin76@gentoo.org 2007-04-11 20:55:18 0000 net-misc/tightvnc-1.2.9-r4 in the tree with those security fixes. jaervosz@gentoo.org 2007-04-11 21:00:40 0000 Thx Raul. Arches please test and mark stable. Target keywords are: tightvnc-1.2.9-r4.ebuild:KEYWORDS="alpha amd64 ppc sparc x86" jokey@gentoo.org 2007-04-11 21:03:33 0000 We're stable on x86 :D welp@gentoo.org 2007-04-12 06:39:45 0000 amd64 stable armin76@gentoo.org 2007-04-12 08:19:45 0000 hppa, you need to stabilize =net-misc/tightvnc-1.3.8-r1 Thanks jer@gentoo.org 2007-04-12 20:34:58 0000 net-misc/tightvnc-1.3.8-r1 stable for HPPA. gustavoz@gentoo.org 2007-04-13 15:03:08 0000 sparc stable. dertobi123@gentoo.org 2007-04-13 15:45:04 0000 ppc stable kloeri@gentoo.org 2007-04-16 23:17:38 0000 Alpha stable. falco@gentoo.org 2007-05-08 20:06:32 0000 GLSA 200705-10 with bug 172575 (libXfont), thanks everybody.