MEDIUM
libarchive: out of bounds heap read in RAR parser
Published Sep 20, 2016
5.5
MEDIUMCVSS 3.0
EPSS 2.30%
Description
The copy_from_lzss_window function in archive_read_support_format_rar.c in libarchive 3.2.0 and earlier allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted rar file.
Affected products
No data.
Configuration 1
OR
- 12
- 12
- 12
Configuration 2
OR
- 12.04
- 14.04
- 15.10
- 16.04
Configuration 3
- ≤ 3.1.901a
No data.
Red Hat Enterprise Linux 7
libarchive-0:3.1.2-10.el7_2
Fixed · RHSA-2016:1844
Red Hat Enterprise Linux 6
libarchive
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | libarchive-0:3.1.2-10.el7_2 | Fixed | RHSA-2016:1844 |
| Red Hat Enterprise Linux 6 | libarchive | Not affected | n/a |
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.
5.5 MEDIUM NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
1 other source (Red Hat) ▾
3.7 LOW Red Hat
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.30% 0.02300
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02300
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 (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.30% (0.02300) | 82.68th | v5 (v2026.06.15) |
| Sep 22, 2026 | 2.30% (0.02300) | 82.55th | v5 (v2026.06.15) |
| Sep 21, 2026 | 4.47% (0.04474) | 91.04th | v5 (v2026.06.15) |
| Sep 6, 2026 | 2.30% (0.02300) | 82.18th | v5 (v2026.06.15) |
| Sep 5, 2026 | 4.47% (0.04474) | 90.84th | v5 (v2026.06.15) |
| Aug 30, 2026 | 2.30% (0.02300) | 82.08th | v5 (v2026.06.15) |
| Aug 28, 2026 | 4.47% (0.04474) | 90.79th | v5 (v2026.06.15) |
| Aug 24, 2026 | 2.30% (0.02300) | 81.99th | v5 (v2026.06.15) |
| Aug 23, 2026 | 4.47% (0.04474) | 90.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.31% (0.02309) | 81.06th | v5 (v2026.06.15) |
| May 27, 2026 | 0.34% (0.00335) | 56.40th | v4 (v2025.03.14) |
| Feb 12, 2026 | 1.36% (0.01356) | 79.83th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.41% (0.02410) | 83.65th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.25% (0.01247) | 77.93th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.80% (0.00798) | 82.34th | v3 (v2023.03.01) |
| Jun 15, 2024 | 0.80% (0.00798) | 81.70th | v3 (v2023.03.01) |
| Dec 22, 2023 | 0.80% (0.00798) | 79.70th | v3 (v2023.03.01) |
| Oct 3, 2023 | 0.70% (0.00705) | 78.07th | v3 (v2023.03.01) |
| Jul 12, 2023 | 0.60% (0.00600) | 75.60th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.56% (0.00562) | 74.28th | 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) |
Weaknesses (1)
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://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_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/06/17/5 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/91409 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-2015-8934 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=1349229 Issue Tracking
- https://github.com/libarchive/libarchive/issues/521 x_refsource_CONFIRMExploitIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8934
- https://security.gentoo.org/glsa/201701-03 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-8934
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 20, 2016
Updated Aug 6, 2024
Reserved Jun 17, 2016
Link CVE-2015-8934
CISA Vulnrichment
Updated n/a