The archive_read_format_cpio_read_header function in archive_read_support_format_cpio.c in libarchive before 3.2.1 allows remote attackers to cause a denial of service (application crash) via a CPIO archive with a large symlink.
結論預警: CVE-2016-4809 綜合評估為中等風險(61.9/100):CVSS 技術影響為高級,利用機率偏高(EPSS 4.77%,百分位 91%) 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 強制指令: 被利用機率偏高—請盤點暴露面並優先安排修補。
風險隨態勢動態變化;本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性;百分位表示該 CVE 在已評分漏洞中的相對排名(越高表示相對更嚴重)。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化(新 − 舊) |
|---|---|---|---|---|
| 1 | 2026-06-27 | 4.68% | 4.77% | +0.09% |
| 2 | 2026-06-15 | 3.13% | 4.68% | +1.55% |
| 3 | 2026-05-27 | — | 3.13% | — |
完整 EPSS 歷史 (共 14 筆)
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-4809 not yet assigned priority: Debian including 1 source packages (libarchive), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-4809 |
gentoo
|
normal | CVE-2016-4809: 1 GLSA(s) (201701-03), 1 atom(s) (app-arch/libarchive); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-4809 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2016-4809 |
suse
|
low | CVE-2016-4809 severity low: SUSE including 276 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 306 product×package rows across 59 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise Desktop 12 SP1, … (59 product lines)): Known Affected 231, Fixed 75. | https://www.suse.com/security/cve/CVE-2016-4809/ |
ubuntu
|
low | CVE-2016-4809 low priority: Ubuntu including 1 source packages (libarchive), 5 status rows across 5 suites (precise, trusty, upstream, wily, xenial): released 4, needs-triage 1. | https://ubuntu.com/security/CVE-2016-4809 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node | 6.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node | 7.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node_eus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| oracle | linux | 6 | cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* |
| oracle | linux | 7 | cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* |
| libarchive | libarchive | <= 3.2.0 | cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://rhn.redhat.com/errata/RHSA-2016-1844.html | Third Party Advisory |
| http://rhn.redhat.com/errata/RHSA-2016-1850.html | Third Party Advisory |
| http://www.debian.org/security/2016/dsa-3657 | |
| http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html | Third Party Advisory |
| http://www.securityfocus.com/bid/91813 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1347084 | Issue Tracking |
| https://github.com/libarchive/libarchive/commit/fd7e0c02 | Issue Tracking Patch |
| https://github.com/libarchive/libarchive/issues/705 | Issue Tracking Patch |
| https://security.gentoo.org/glsa/201701-03 |