crypto: s390/aes - Fix buffer overread in CTR mode
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- Partial Red Hat: 2 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: s390/aes - Fix buffer overread in CTR mode When processing the last block, the s390 ctr code will always read a whole block, even if there isn't a whole block of data left. Fix this by using the actual length left and copy it into a buffer first for processing.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.0 and later | 5.10.210, 5.15.149, 6.1.76, 6.6.15, 6.7.3, 6.8 | Patch available | CNA |
- Linux VendorLinux Affected 3.0 and later Fixed in 5.10.210, 5.15.149, 6.1.76, 6.6.15, 6.7.3, 6.8 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.210, 5.15.149, 6.1.76, 6.6.15, 6.7.3, 6.8
Red Hat 1 advisory
- RHSA-2024:4211 Released 2024-07-02 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.8.1.el8_10, kernel-4.18.0-553.8.1.el8_10, kernel-abi-stablelists-4.18.0-553.8.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.8.1.el8_10
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:4211 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:4211 |
Not affected: 2 products
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux BaseOS (v. 8)
Timeline
- 2026-10-02 Threatist record created from CVE-2023-52669
- 2026-10-03 Alias added: GHSA-mjwr-f33f-hp8q
References
Patch 6
- https://git.kernel.org/stable/c/cd51e26a3b89706beec64f2d8296cfb1c34e0c79
- https://git.kernel.org/stable/c/a7f580cdb42ec3d53bbb7c4e4335a98423703285
- https://git.kernel.org/stable/c/dbc9a791a70ea47be9f2acf251700fe254a2ab23
- https://git.kernel.org/stable/c/d68ac38895e84446848b7647ab9458d54cacba3e
- https://git.kernel.org/stable/c/e78f1a43e72daf77705ad5b9946de66fc708b874
- https://git.kernel.org/stable/c/d07f951903fa9922c375b8ab1ce81b18a0034e3b
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2023-52669 · CVE Program
- CVE-2023-52669 · NVD
- FIRST EPSS
- GHSA-mjwr-f33f-hp8q · GitHub Advisory Database · CC BY 4.0
- CVE-2023-52669 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences