CVE-2021-47219: Software Security Vulnerability Vulnerability
HIGHCVE-2021-47219 is a HIGH (CVSS 7.1) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.
CVE-2021-47219 at a Glance
Security Impact
CVSS: 7.1
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H).
How to Fix CVE-2021-47219
To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:treeHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2021-47219, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:treeAnalyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.
Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
References
Frequently Asked Questions
What is CVE-2021-47219?
Which Software versions are affected?
What version fixes CVE-2021-47219?
What is the CVSS score of CVE-2021-47219?
What CWE is associated with CVE-2021-47219?
How can I check Maven dependencies for CVE-2021-47219?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-pq28-hj26-jp72",
"modified" : "2026-08-04T12:32:49Z",
"published" : "2024-04-10T21:30:32Z",
"aliases" : [ "CVE-2021-47219" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: scsi_debug: Fix out-of-bound read in resp_report_tgtpgs()\n\nThe following issue was observed running syzkaller:\n\nBUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:377 [inline]\nBUG: KASAN: slab-out-of-bounds in sg_copy_buffer+0x150/0x1c0 lib/scatterlist.c:831\nRead of size 2132 at addr ffff8880aea95dc8 by task syz-executor.0/9815\n\nCPU: 0 PID: 9815 Comm: syz-executor.0 Not tainted 4.19.202-00874-gfc0fe04215a9 #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014\nCall Trace:\n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack+0xe4/0x14a lib/dump_stack.c:118\n print_address_description+0x73/0x280 mm/kasan/report.c:253\n kasan_report_error mm/kasan/report.c:352 [inline]\n kasan_report+0x272/0x370 mm/kasan/report.c:410\n memcpy+0x1f/0x50 mm/kasan/kasan.c:302\n memcpy include/linux/string.h:377 [inline]\n sg_copy_buffer+0x150/0x1c0 lib/scatterlist.c:831\n fill_from_dev_buffer+0x14f/0x340 drivers/scsi/scsi_debug.c:1021\n resp_report_tgtpgs+0x5aa/0x770 drivers/scsi/scsi_debug.c:1772\n schedule_resp+0x464/0x12f0 drivers/scsi/scsi_debug.c:4429\n scsi_debug_queuecommand+0x467/0x1390 drivers/scsi/scsi_debug.c:5835\n scsi_dispatch_cmd+0x3fc/0x9b0 drivers/scsi/scsi_lib.c:1896\n scsi_request_fn+0x1042/0x1810 drivers/scsi/scsi_lib.c:2034\n __blk_run_queue_uncond block/blk-core.c:464 [inline]\n __blk_run_queue+0x1a4/0x380 block/blk-core.c:484\n blk_execute_rq_nowait+0x1c2/0x2d0 block/blk-exec.c:78\n sg_common_write.isra.19+0xd74/0x1dc0 drivers/scsi/sg.c:847\n sg_write.part.23+0x6e0/0xd00 drivers/scsi/sg.c:716\n sg_write+0x64/0xa0 drivers/scsi/sg.c:622\n __vfs_write+0xed/0x690 fs/read_write.c:485\nkill_bdev:block_device:00000000e138492c\n vfs_write+0x184/0x4c0 fs/read_write.c:549\n ksys_write+0x107/0x240 fs/read_write.c:599\n do_syscall_64+0xc2/0x560 arch/x86/entry/common.c:293\n entry_SYSCALL_64_after_hwframe+0x49/0xbe\n\nWe get 'alen' from command its type is int. If userspace passes a large\nlength we will get a negative 'alen'.\n\nSwitch n, alen, and rlen to u32.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-47219"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/66523553fa62c7878fc5441dc4e82be71934eb77"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/8440377e1a5644779b4c8d013aa2a917f5fc83c3"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/f347c26836c270199de1599c3cd466bb7747caa9"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-125" ],
"severity" : "HIGH",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2024-04-10T19:15:48Z"
}
}