libarchive: Stack out of bounds read in ar parser
Published Sep 20, 2016
5.5
MEDIUMCVSS 3.0
EPSS 1.92%
Description
The _ar_read_header function in archive_read_support_format_ar.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (out-of-bounds stack read) via a crafted ar file.
Affected products
No data.
Configuration 1
- 12.0
- 12.0
- 12.0
Configuration 2
- 12.04
- 14.04
- 15.10
- 16.04
Configuration 3
- ≤ 3.1.901a
No data.
Red Hat Enterprise Linux 6
libarchive-0:2.8.3-7.el6_8
Fixed · RHSA-2016:1850
Red Hat Enterprise Linux 7
libarchive-0:3.1.2-10.el7_2
Fixed · RHSA-2016:1844
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libarchive-0:2.8.3-7.el6_8 | Fixed | RHSA-2016:1850 |
| Red Hat Enterprise Linux 7 | libarchive-0:3.1.2-10.el7_2 | Fixed | RHSA-2016:1844 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.92% (0.01917) | 79.12th | v5 (v2026.06.15) |
| Sep 22, 2026 | 1.92% (0.01917) | 78.97th | v5 (v2026.06.15) |
| Sep 21, 2026 | 3.30% (0.03297) | 87.97th | v5 (v2026.06.15) |
| Sep 6, 2026 | 1.92% (0.01917) | 78.51th | v5 (v2026.06.15) |
| Sep 5, 2026 | 3.30% (0.03297) | 87.71th | v5 (v2026.06.15) |
| Aug 30, 2026 | 1.92% (0.01917) | 78.40th | v5 (v2026.06.15) |
| Aug 28, 2026 | 3.30% (0.03297) | 87.64th | v5 (v2026.06.15) |
| Aug 24, 2026 | 1.92% (0.01917) | 78.28th | v5 (v2026.06.15) |
| Aug 23, 2026 | 3.30% (0.03297) | 87.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.92% (0.01924) | 77.21th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.50% (0.00495) | 63.67th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.26% (0.01259) | 86.18th | v3 (v2023.03.01) |
| Dec 22, 2023 | 1.26% (0.01259) | 84.08th | v3 (v2023.03.01) |
| Oct 3, 2023 | 1.11% (0.01114) | 82.89th | v3 (v2023.03.01) |
| Jul 12, 2023 | 0.95% (0.00948) | 81.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.89% (0.00888) | 80.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.96% (0.01955) | 78.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.96% (0.01955) | 76.59th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.96% (0.01955) | 55.71th | v2 (v2022.01.01) |
References (16)
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1844.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-1850.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2016/dsa-3657 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2016/06/17/2 mailing-listx_refsource_MLISTThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/06/17/5 mailing-listx_refsource_MLISTThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/91301 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-3033-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-8920 Vendor Advisory
- https://blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html x_refsource_MISCThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1348416 Issue Tracking
- https://github.com/libarchive/libarchive/issues/511 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-8920
- https://security.gentoo.org/glsa/201701-03 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-8920
Change history (0)
No recorded changes yet.