Vulnerability Name:

CVE-2017-7861 (CCN-124651)

Assigned:2017-02-22
Published:2017-02-22
Updated:2017-04-21
Summary:Google gRPC before 2017-02-22 has an out-of-bounds write related to the gpr_free function in core/lib/support/alloc.c.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-787
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-7861

Source: BID
Type: Third Party Advisory, VDB Entry
97694

Source: CCN
Type: BID-97694
Google gRPC CVE-2017-7861 Heap Based Buffer Overflow Vulnerability

Source: CCN
Type: Google Security Research Issue 655
grpc: Crash in gpr_free

Source: MISC
Type: Third Party Advisory, VDB Entry
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=655

Source: XF
Type: UNKNOWN
google-grpc-cve20177861-dos(124651)

Source: CCN
Type: gRPC GIT Repository
Fixed Heap-buffer-overflow in parse_unix via clusterfuzz #9833

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/grpc/grpc/pull/9833

Source: CCN
Type: IBM Security Bulletin 6605867 (Security Information Queue)
IBM Security Verify Information Queue uses a Google gRPC framework with multiple vulnerabilities (CVE-2017-7860, CVE-2017-7861, CVE-2017-9431)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:grpc:grpc:*:*:*:*:*:*:*:* (Version <= 1.1.2)

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:201778610000000
    V
    CVE-2017-7861 on Ubuntu 19.04 (disco) - medium.
    2017-04-14
    oval:com.ubuntu.artful:def:20177861000
    V
    CVE-2017-7861 on Ubuntu 17.10 (artful) - medium.
    2017-04-14
    oval:com.ubuntu.cosmic:def:201778610000000
    V
    CVE-2017-7861 on Ubuntu 18.10 (cosmic) - medium.
    2017-04-14
    oval:com.ubuntu.bionic:def:20177861000
    V
    CVE-2017-7861 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-04-14
    oval:com.ubuntu.bionic:def:201778610000000
    V
    CVE-2017-7861 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-04-14
    oval:com.ubuntu.cosmic:def:20177861000
    V
    CVE-2017-7861 on Ubuntu 18.10 (cosmic) - medium.
    2017-04-14
    oval:com.ubuntu.xenial:def:201778610000000
    V
    CVE-2017-7861 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-14
    oval:com.ubuntu.xenial:def:20177861000
    V
    CVE-2017-7861 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-14
    BACK
    grpc grpc *