CVE-2015-8923
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.7 Medium
AI Score
Confidence
High
0.03 Low
EPSS
Percentile
90.9%
The process_extra function in libarchive before 3.2.0 uses the size field and a signed number in an offset, which allows remote attackers to cause a denial of service (crash) via a crafted zip file.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| libarchive:libarchive | libarchive | le | 3.1.901a |
References
lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html
rhn.redhat.com/errata/RHSA-2016-1844.html
www.debian.org/security/2016/dsa-3657
www.openwall.com/lists/oss-security/2016/06/17/2
www.openwall.com/lists/oss-security/2016/06/17/5
www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
www.securityfocus.com/bid/91309
www.ubuntu.com/usn/USN-3033-1
blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html
github.com/libarchive/libarchive/issues/514
security.gentoo.org/glsa/201701-03
Social References
More
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.7 Medium
AI Score
Confidence
High
0.03 Low
EPSS
Percentile
90.9%