X.org libFS 1.0.4 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to an unexpected sign extension in the FSOpenServer function.

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched.

  - libFS: Sign extension issues resulting in heap-based buffer overflow (CVE-2013-1996)

Note that Nessus has not tested for this issue but has instead relied on the package manager's report that the package is installed.

The remote Solaris system is missing necessary patches to address security updates :

  - Multiple integer overflows in X.org libX11 1.5.99.901     (1.6 RC1) and earlier allow X servers to trigger     allocation of insufficient memory and a buffer overflow     via vectors related to the (1) XQueryFont, (2)
    _XF86BigfontQueryFont, (3) XListFontsWithInfo, (4)     XGetMotionEvents, (5) XListHosts, (6)     XGetModifierMapping, (7) XGetPointerMapping, (8)     XGetKeyboardMapping, (9) XGetWindowProperty, (10)     XGetImage, (11) LoadColornameDB, (12)     XrmGetFileDatabase, (13) _XimParseStringFile, or (14)     TransFileName functions. (CVE-2013-1981)

  - Multiple integer overflows in X.org libXext 1.3.1 and     earlier allow X servers to trigger allocation of     insufficient memory and a buffer overflow via vectors     related to the (1) XcupGetReservedColormapEntries, (2)     XcupStoreColors, (3) XdbeGetVisualInfo, (4)     XeviGetVisualInfo, (5) XShapeGetRectangles, and (6)     XSyncListSystemCounters functions. (CVE-2013-1982)

  - Multiple integer overflows in X.org libXi 1.7.1 and     earlier allow X servers to trigger allocation of     insufficient memory and a buffer overflow via vectors     related to the (1) XGetDeviceControl, (2)     XGetFeedbackControl, (3) XGetDeviceDontPropagateList,     (4) XGetDeviceMotionEvents, (5) XIGetProperty, (6)     XIGetSelectedEvents, (7) XGetDeviceProperties, and (8)     XListInputDevices functions. (CVE-2013-1984)

  - Integer overflow in X.org libXinerama 1.1.2 and earlier     allows X servers to trigger allocation of insufficient     memory and a buffer overflow via vectors related to the     XineramaQueryScreens function. (CVE-2013-1985)

  - X.org libXi 1.7.1 and earlier allows X servers to     trigger allocation of insufficient memory and a buffer     overflow via vectors related to an unexpected sign     extension in the XListInputDevices function.
    (CVE-2013-1995)

  - X.org libFS 1.0.4 and earlier allows X servers to     trigger allocation of insufficient memory and a buffer     overflow via vectors related to an unexpected sign     extension in the FSOpenServer function. (CVE-2013-1996)

  - Multiple buffer overflows in X.org libX11 1.5.99.901     (1.6 RC1) and earlier allow X servers to cause a denial     of service (crash) and possibly execute arbitrary code     via crafted length or index values to the (1)     XAllocColorCells, (2) _XkbReadGetDeviceInfoReply, (3)
    _XkbReadGeomShapes, (4) _XkbReadGetGeometryReply, (5)
    _XkbReadKeySyms, (6) _XkbReadKeyActions, (7)
    _XkbReadKeyBehaviors, (8) _XkbReadModifierMap, (9)
    _XkbReadExplicitComponents, (10) _XkbReadVirtualModMap,     (11) _XkbReadGetNamesReply, (12) _XkbReadGetMapReply,     (13) _XimXGetReadData, (14) XListFonts, (15)     XListExtensions, and (16) XGetFontPath functions.
    (CVE-2013-1997)

  - Multiple buffer overflows in X.org libXi 1.7.1 and     earlier allow X servers to cause a denial of service     (crash) and possibly execute arbitrary code via crafted     length or index values to the (1)     XGetDeviceButtonMapping, (2) XIPassiveGrabDevice, and     (3) XQueryDeviceState functions. (CVE-2013-1998)

  - Buffer overflow in X.org libXt 1.1.3 and earlier allows     X servers to cause a denial of service (crash) and     possibly execute arbitrary code via crafted length or     index values to the _XtResourceConfigurationEH function.
    (CVE-2013-2002)

  - The (1) GetDatabase and (2) _XimParseStringFile     functions in X.org libX11 1.5.99.901 (1.6 RC1) and     earlier do not restrict the recursion depth when     processing directives to include files, which allows X     servers to cause a denial of service (stack consumption)     via a crafted file. (CVE-2013-2004)

  - X.org libXt 1.1.3 and earlier does not check the return     value of the XGetWindowProperty function, which allows X     servers to trigger use of an uninitialized pointer and     memory corruption via vectors related to the (1)     ReqCleanup, (2) HandleSelectionEvents, (3) ReqTimedOut,     (4) HandleNormal, and (5) HandleSelectionReplies     functions. (CVE-2013-2005)

  - Multiple integer overflows in X.org libXp 1.0.1 and     earlier allow X servers to trigger allocation of     insufficient memory and a buffer overflow via vectors     related to the (1) XpGetAttributes, (2)     XpGetOneAttribute, (3) XpGetPrinterList, and (4)     XpQueryScreens functions. (CVE-2013-2062)

This update of libFS fixes an integer overflow issue.

  -     U_0001-Sign-extension-issue-and-integer-overflow-in-FSOp     enS.patch

  - Sign extension issue and integer overflow in     FSOpenServer() [CVE-2013-1996] (bnc#821663, bnc#815451)

The remote host is affected by the vulnerability described in GLSA-201405-07 (X.Org X Server: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in X.Org X Server. Please       review the CVE identifiers referenced below for details.
  Impact :

    A context-dependent attacker could execute arbitrary code with the       privileges of the process, cause a Denial of Service condition, or obtain       sensitive information.
  Workaround :

    There is no known workaround at this time.

This update of xorg-x11-libs fixes several integer and buffer overflow issues.

Bug 815451/821663

CVE-2013-1984 / CVE-2013-1985 / CVE-2013-1986 / CVE-2013-1988 / CVE-2013-1990 / CVE-2013-1991 / CVE-2013-1992 / CVE-2013-1995 / CVE-2013-1996 / CVE-2013-1998 / CVE-2013-1999 / CVE-2013-2000 / CVE-2013-2001 / CVE-2013-2003 / CVE-2013-2063

libFS 1.0.5 Update to latest git to fix the following CVEs:
CVE-2013-1996

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update of xorg-x11 fixes several security vulnerabilities.

  - Bug 815451- X.Org Security Advisory: May 23, 2013

  - Bug 821664 - libX11

  - Bug 821671 - libXv

  - Bug 821670 - libXt

  - Bug 821669 - libXrender

  - Bug 821668 - libXp

  - Bug 821667 - libXfixes

  - Bug 821665 - libXext

  - Bug 821663 - libFS, libXcursor, libXi, libXinerama,     libXRes, libXtst, libXvMC, libXxf86dga, libXxf86vm,     libdmx

This update of xorg-x11-libs fixes several integer and buffer overflow issues. (bnc#815451, bnc#821663)

Ilja van Sprundel discovered multiple security issues in various X.org libraries and components. An attacker could use these issues to cause applications to crash, resulting in a denial of service, or possibly execute arbitrary code.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

freedesktop.org reports :

Ilja van Sprundel, a security researcher with IOActive, has discovered a large number of issues in the way various X client libraries handle the responses they receive from servers, and has worked with X.Org's security team to analyze, confirm, and fix these issues.

Most of these issues stem from the client libraries trusting the server to send correct protocol data, and not verifying that the values will not overflow or cause other damage. Most of the time X clients & servers are run by the same user, with the server more privileged from the clients, so this is not a problem, but there are scenarios in which a privileged client can be connected to an unprivileged server, for instance, connecting a setuid X client (such as a screen lock program) to a virtual X server (such as Xvfb or Xephyr) which the user has modified to return invalid data, potentially allowing the user to escalate their privileges.

The vulnerabilities include :

Integer overflows calculating memory needs for replies.

Sign extension issues calculating memory needs for replies.

Buffer overflows due to not validating length or offset values in replies.

Integer overflows parsing user-specified files.

Unbounded recursion parsing user-specified files.

Memory corruption due to unchecked return values.

Update to latest git to fix the following CVEs: CVE-2013-1996

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Ilja van Sprundel of IOActive discovered several security issues in multiple components of the X.org graphics stack and the related libraries: Various integer overflows, sign handling errors in integer conversions, buffer overflows, memory corruption and missing input sanitising may lead to privilege escalation or denial of service.

ID	Name	Product	Family	Severity
198693	RHEL 5 : libfs (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
80822	Oracle Solaris Third-Party Patch Update : xorg (multiple_vulnerabilities_in_x_org1)	Nessus	Solaris Local Security Checks	medium
75037	openSUSE Security Update : libFS (openSUSE-SU-2013:1034-1)	Nessus	SuSE Local Security Checks	medium
74028	GLSA-201405-07 : X.Org X Server: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	medium
69112	SuSE 11.3 Security Update : xorg-x11-libs (SAT Patch Number 7944)	Nessus	SuSE Local Security Checks	medium
67392	Fedora 19 : libFS-1.0.5-1.fc19 (2013-9976)	Nessus	Fedora Local Security Checks	medium
67256	SuSE 10 Security Update : xorg-x11 (ZYPP Patch Number 8623)	Nessus	SuSE Local Security Checks	medium
67106	SuSE 11.2 Security Update : xorg-x11-libs (SAT Patch Number 7846)	Nessus	SuSE Local Security Checks	medium
66817	Ubuntu 12.04 LTS / 12.10 / 13.04 : libfs vulnerability (USN-1853-1)	Nessus	Ubuntu Local Security Checks	medium
66798	FreeBSD : xorg -- protocol handling issues in X Window System client libraries (2eebebff-cd3b-11e2-8f09-001b38c3836c)	Nessus	FreeBSD Local Security Checks	medium
66750	Fedora 18 : libFS-1.0.4-6.20130524git26dc23446.fc18 (2013-9140)	Nessus	Fedora Local Security Checks	medium
66571	Debian DSA-2687-1 : libfs - several vulnerabilities	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2013-1996

critical

Tenable Plugins

critical

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium