Vulnerability Name:

CVE-2011-1781 (CCN-67568)

Assigned:2011-05-11
Published:2011-05-11
Updated:2023-02-13
Summary:SystemTap 1.4, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding (aka backtracing).
CVSS v3 Severity:5.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:1.2 Low (CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:N/A:P)
0.9 Low (Temporal CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
3.4 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
4.6 Medium (REDHAT CVSS v2 Vector: AV:A/AC:H/Au:N/C:N/I:N/A:C)
3.4 Low (REDHAT Temporal CVSS v2 Vector: AV:A/AC:H/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2011-1781

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: RHSA-2011-0842
Moderate: systemtap security update

Source: CCN
Type: SA44608
SystemTap Division By Zero Denial of Service Vulnerabilities

Source: CCN
Type: SystemTap GIT Repository
git://sources.redhat.com/git/systemtap.git

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: SystemTap Web page
SystemTap

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: OSVDB ID: 73278
SystemTap runtime/unwind.c compute_expr() Function Divide-by-zero DWARF Information Handling DoS

Source: CCN
Type: BID-47934
SystemTap DWARF Expression Handling Two Divide-By-Zero Denial of Service Vulnerabilities

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: Red Hat Bugzilla Bug 702687
(CVE-2011-1769) CVE-2011-1769 systemtap: does not guard against DWARF operations div-by-zero errors, which can cause a kernel panic

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: XF
Type: UNKNOWN
systemtap-computeexpr-dos(67568)

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:6:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:6::server:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:systemtap:systemtap:1.4:*:*:*:*:*:*:*
  • AND
  • cpe:/o:redhat:enterprise_linux:6:*:server:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:6:*:workstation:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_desktop:6:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_hpc_node:6:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_server_eus:6.1.z:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:23507
    P
    		ELSA-2011:0842: systemtap security update (Moderate)
    2014-05-26
    oval:org.mitre.oval:def:21790
    P
    		RHSA-2011:0842: systemtap security update (Moderate)
    2014-02-24
    oval:com.ubuntu.precise:def:20111781000
    V
    		CVE-2011-1781 on Ubuntu 12.04 LTS (precise) - medium.
    2011-08-29
    oval:com.redhat.rhsa:def:20110842
    P
    		RHSA-2011:0842: systemtap security update (Moderate)
    2011-05-31
    BACK
    systemtap systemtap 1.4
    redhat enterprise linux 6
    redhat enterprise linux 6
    redhat enterprise linux desktop 6
    redhat enterprise linux hpc node 6
    redhat enterprise linux server eus 6.1.z