CVE-2021-46023
published 2023-02-14CVE-2021-46023: An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application…
PriorityP431high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.78%
51.7th percentile
An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application crash.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | mruby | < mruby 3.1.0-1 (bookworm) | mruby 3.1.0-1 (bookworm) |
| mruby | mruby | < 3.1.0 | 3.1.0 |
| mruby | mruby | >= 0 < 3.1.0-1 | 3.1.0-1 |
| mruby | mruby | >= 0 < 3.1.0-1 | 3.1.0-1 |
| mruby | mruby | >= 0 < 3.1.0-1 | 3.1.0-1 |
| msrc | azl3_rust_1.75.0-14_on_azure_linux_3.0 | — | — |
| msrc | azl3_rust_1.86.0-1_on_azure_linux_3.0 | — | — |
| msrc | cbl2_nghttp2_1.46.0-3_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_rust_1.72.0-10_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_rust_1.59.0-1_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5HIGH
vendor_msrc7.5HIGH
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OSV
CVE-2021-46023: An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3
osv·2023-02-14·CVSS 7.5
CVE-2021-46023 [HIGH] CVE-2021-46023: An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3
An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application crash.
GHSA
GHSA-4g9q-c75g-jq7q: An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3
ghsa_unreviewed·2023-02-14
CVE-2021-46023 [HIGH] CWE-119 GHSA-4g9q-c75g-jq7q: An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3
An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application crash.
Microsoft
An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application crash.
vendor_msrc·2023-02-14·CVSS 7.5
CVE-2021-46023 [HIGH] CWE-119 An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application crash.
An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application crash.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Ma
Debian
CVE-2021-46023: mruby - An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby...
vendor_debian·2021·CVSS 7.5
CVE-2021-46023 [HIGH] CVE-2021-46023: mruby - An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby...
An Untrusted Pointer Dereference was discovered in function mrb_vm_exec in mruby before 3.1.0-rc. The vulnerability causes a segmentation fault and application crash.
Scope: local
bookworm: resolved (fixed in 3.1.0-1)
bullseye: open
forky: resolved (fixed in 3.1.0-1)
sid: resolved (fixed in 3.1.0-1)
trixie: resolved (fixed in 3.1.0-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-02-14
Published