{"id":"CVE-2026-16517","aliases":["ALSA-2026:69553","AZL-93231","BELL-CVE-2026-16517","DEBIAN-CVE-2026-16517","EUVD-2026-47586","GHSA-j8w5-8rj6-wpwf","OESA-2026-3258","RHSA-2026:43818","RHSA-2026:69553","RLSA-2026:69553","UBUNTU-CVE-2026-16517","USN-8902-1"],"status":"published","title":"Libarchive: libarchive: signed integer overflow in archive_write_zip_header","description":"A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory 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In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.","status":"published","published":"2026-07-21T22:41:38.128Z","modified":"2026-11-06T18:05:30.566Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-190"],"updated_at":"2026-11-06T19:59:19.701997Z"}],"euvd":[{"id":"EUVD-2026-47586","description":"A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.","status":"published","published":"2026-07-21T22:41:38Z","modified":"2026-11-06T18:05:30Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-06T19:05:52.672747Z"}],"ghsa":[{"id":"GHSA-j8w5-8rj6-wpwf","title":"A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the...","description":"A signed integer overflow vulnerability was found in libarchive's ZIP writer. 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In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.","status":"published","published":"2026-07-21T23:17:00.587Z","modified":"2026-11-06T19:17:45.977Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"}],"cwes":["CWE-190"],"updated_at":"2026-11-06T22:02:12.917468Z"}],"osv":[{"id":"BELL-CVE-2026-16517","status":"published","published":"2026-07-22T06:04:04.133631Z","modified":"2026-08-06T07:15:36.875700701Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:28:23.037038Z"},{"id":"DEBIAN-CVE-2026-16517","description":"A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.","status":"published","published":"2026-07-21T23:17:00.587Z","modified":"2026-11-07T10:00:21.129216471Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-07T10:14:19.880839Z"},{"id":"OESA-2026-3258","title":"libarchive security update","description":"is an open-source BSD-licensed C programming library that  provides streaming access to a variety of different archive formats, including tar, cpio, pax, zip, and ISO9660 images. The distribution  also includes bsdtar and bsdcpio, full-featured implementations of  tar and cpio that use .\r\n\r\nSecurity Fix(es):\n\nA signed integer overflow vulnerability was found in libarchive\u0026apos;s ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.(CVE-2026-16517)","status":"published","published":"2026-08-07T02:42:20Z","modified":"2026-08-07T03:00:57.981619579Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:52:46.823443Z"},{"id":"RHSA-2026:43818","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","status":"published","published":"2026-07-23T10:14:35Z","modified":"2026-10-14T10:20:44Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:20.491441Z"},{"id":"RHSA-2026:69553","title":"Red Hat Security Advisory: libarchive security update","status":"published","published":"2026-09-22T10:20:05Z","modified":"2026-10-10T10:19:07Z","cvss":[{"version":"3.1","score":3.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RLSA-2026:69553","title":"Low: libarchive security update","description":"The libarchive programming library can create and read several different streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility, scripting language bindings such as python-libarchive, and several popular desktop file managers.\n\nSecurity Fix(es):\n\n* libarchive: heap overflow OOB read while parsing a tar archive contains a PAX extended header (CVE-2026-15028)\n\n* libarchive: libarchive: Signed Integer Overflow in archive_write_zip_header (CVE-2026-16517)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-09-23T18:07:43.655999Z","modified":"2026-09-23T18:24:42.299031007Z","cvss":[{"version":"3.1","score":3.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"UBUNTU-CVE-2026-16517","description":"A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.","status":"published","published":"2026-07-21T23:17:00Z","modified":"2026-10-08T19:47:05.699529086Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T16:56:00.592716Z"},{"id":"ALSA-2026:69553","title":"Low: libarchive security update","description":"The libarchive programming library can create and read several different streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility, scripting language bindings such as python-libarchive, and several popular desktop file managers.  \n\nSecurity Fix(es):  \n\n  * libarchive: heap overflow OOB read while parsing a tar archive contains a PAX extended header (CVE-2026-15028)\n  * libarchive: libarchive: Signed Integer Overflow in archive_write_zip_header (CVE-2026-16517)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-09-21T00:00:00Z","modified":"2026-10-29T11:30:40.559706948Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"AZL-93231","title":"CVE-2026-16517 affecting package libarchive 3.7.7-7","description":"A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.","status":"published","published":"2026-07-21T23:17:00Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:25.880689Z"},{"id":"USN-8902-1","title":"libarchive vulnerability","description":"It was discovered that libarchive had a signed integer overflow in its\nZIP writer when handling encrypted entries with sizes near the maximum\nvalue. An attacker could possibly use this issue to cause libarchive to\ncrash or execute arbitrary code.","status":"published","published":"2026-10-08T13:14:05Z","modified":"2026-10-09T01:57:56.859511043Z","updated_at":"2026-11-02T16:58:26.907654Z"}]}}