A flaw was found in libarchive. An attacker can cause a Denial of Service (DoS) or potential information disclosure due to a use-after-free vulnerability, which occurs when a program reads memory that has already been released. This issue arises when the archive_entry_copy_mac_metadata() function deallocates an internal buffer before completing a data copy. An attacker who can supply input to an application utilizing this function can trigger the flaw to crash the application or read uninitialized memory data.
Metrics
Affected Vendors & Products
References
History
Fri, 06 Nov 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat openshift Ai
Redhat rhel Els |
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| CPEs | cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
cpe:/a:redhat:enterprise_linux:10 cpe:/a:redhat:enterprise_linux:8 cpe:/a:redhat:enterprise_linux:9 cpe:/a:redhat:openshift_ai cpe:/o:redhat:rhel_els:6 cpe:/o:redhat:rhel_els:7 |
| Vendors & Products |
Redhat openshift Ai
Redhat rhel Els |
Sat, 24 Oct 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Libarchive
Libarchive libarchive Red Hat Red Hat enterprise Linux Redhat hardened Images |
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| Vendors & Products |
Libarchive
Libarchive libarchive Red Hat Red Hat enterprise Linux Redhat hardened Images |
Mon, 19 Oct 2026 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Sat, 17 Oct 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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Fri, 16 Oct 2026 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in libarchive. An attacker can cause a Denial of Service (DoS) or potential information disclosure due to a use-after-free vulnerability, which occurs when a program reads memory that has already been released. This issue arises when the archive_entry_copy_mac_metadata() function deallocates an internal buffer before completing a data copy. An attacker who can supply input to an application utilizing this function can trigger the flaw to crash the application or read uninitialized memory data. | |
| Title | Libarchive: libarchive: use-after-free via aliased mac metadata copy | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird |
|
| Weaknesses | CWE-416 | |
| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published: 2026-10-16T22:03:40.603Z
Updated: 2026-11-06T18:08:38.984Z
Reserved: 2026-07-27T16:15:33.820Z
Link: CVE-2026-17591
Updated: 2026-10-19T21:28:03.433Z
Status : Awaiting Analysis
Published: 2026-10-16T23:17:01.420
Modified: 2026-11-06T19:17:46.670
Link: CVE-2026-17591
No data.