Vulnerability Name:

CVE-2015-5327 (CCN-108359)

Assigned:2015-11-27
Published:2015-11-27
Updated:2019-03-07
Summary:Out-of-bounds memory read in the x509_decode_time function in x509_cert_parser.c in Linux kernels 4.3-rc1 and after.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-125
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2015-5327

Source: CCN
Type: oss-sec Mailing List, Fri, 27 Nov 2015 15:12:18 +0100
CVE-2015-5327 kernel: User triggerable out-of-bounds read

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20151127 CVE-2015-5327 kernel: User triggerable out-of-bounds read

Source: CCN
Type: Red Hat Bugzilla – Bug 1278978
(CVE-2015-5327) CVE-2015-5327 kernel: User triggerable out-of-bounds read

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1278978

Source: XF
Type: UNKNOWN
linux-kernel-cve20155327-info-disc(108359)

Source: CCN
Type: Linux Kernel GIT Repository
X.509: Fix the time validation [ver #2]

Source: CONFIRM
Type: Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc25b994acfbc901429da682d0f73c190e960206

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:4.3:-:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.3:rc1:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.3:rc2:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.3:rc3:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.3:rc4:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.3:rc5:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.3:rc6:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.3:rc7:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.trusty:def:20155327000
    V
    		CVE-2015-5327 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-09-25
    oval:com.ubuntu.xenial:def:20155327000
    V
    		CVE-2015-5327 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-09-25
    oval:com.ubuntu.xenial:def:201553270000000
    V
    		CVE-2015-5327 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-09-25
    oval:com.ubuntu.precise:def:20155327000
    V
    		CVE-2015-5327 on Ubuntu 12.04 LTS (precise) - medium.
    2015-11-13
    BACK
    linux linux kernel 4.3
    linux linux kernel 4.3 rc1
    linux linux kernel 4.3 rc2
    linux linux kernel 4.3 rc3
    linux linux kernel 4.3 rc4
    linux linux kernel 4.3 rc5
    linux linux kernel 4.3 rc6
    linux linux kernel 4.3 rc7
    linux linux kernel *