Vulnerability Name:

CVE-2017-9778 (CCN-127837)

Assigned:2017-06-15
Published:2017-06-15
Updated:2019-10-03
Summary:GNU Debugger (GDB) 8.0 and earlier fails to detect a negative length field in a DWARF section. A malformed section in an ELF binary or a core file can cause GDB to repeatedly allocate memory until a process limit is reached. This can, for example, impede efforts to analyze malware with GDB.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
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)
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
Vulnerability Type:CWE-770
CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-9778

Source: BID
Type: Third Party Advisory, VDB Entry
99244

Source: CCN
Type: BID-99244
GNU Debugger (GDB) CVE-2017-9778 Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
gdb-cve20179778-dos(127837)

Source: CCN
Type: Sourceware Bugzilla – Bug 21600
Fail to detect invalid FDE header, can exhaust gdb process's virtual memory and terminate debug session

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=21600

Source: CCN
Type: GNU Web site
GDB: The GNU Project Debugger

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-9778

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnu:gdb:*:*:*:*:*:*:*:* (Version <= 8.0)

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:201797780000000
    V
    		CVE-2017-9778 on Ubuntu 16.04 LTS (xenial) - low.
    2017-06-21
    oval:com.ubuntu.artful:def:20179778000
    V
    		CVE-2017-9778 on Ubuntu 17.10 (artful) - low.
    2017-06-21
    oval:com.ubuntu.xenial:def:20179778000
    V
    		CVE-2017-9778 on Ubuntu 16.04 LTS (xenial) - low.
    2017-06-21
    oval:com.ubuntu.disco:def:201797780000000
    V
    		CVE-2017-9778 on Ubuntu 19.04 (disco) - low.
    2017-06-21
    oval:com.ubuntu.bionic:def:20179778000
    V
    		CVE-2017-9778 on Ubuntu 18.04 LTS (bionic) - low.
    2017-06-21
    oval:com.ubuntu.cosmic:def:201797780000000
    V
    		CVE-2017-9778 on Ubuntu 18.10 (cosmic) - low.
    2017-06-21
    oval:com.ubuntu.cosmic:def:20179778000
    V
    		CVE-2017-9778 on Ubuntu 18.10 (cosmic) - low.
    2017-06-21
    oval:com.ubuntu.bionic:def:201797780000000
    V
    		CVE-2017-9778 on Ubuntu 18.04 LTS (bionic) - low.
    2017-06-21
    oval:com.ubuntu.trusty:def:20179778000
    V
    		CVE-2017-9778 on Ubuntu 14.04 LTS (trusty) - low.
    2017-06-21
    BACK
    gnu gdb *