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TI-2023-29663 Aliases CVE-2023-53373GHSA-gxr7-4mfg-37c7

crypto: seqiv - Handle EBUSY correctly

Priority LOW 35CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 33 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00165 5th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.14.308, 4.19.276, 5.4.235 +5Red Hat: 15 advisoriesRed Hat: 33 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux2.6.25 and later4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3, 6.3Patch availableCNA
  • Linux VendorLinux Affected 2.6.25 and later Fixed in 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3, 6.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*2.6.25 to before 4.14.308; 4.15 to before 4.19.276; 4.20 to before 5.4.235; 5.5 to before 5.10.173; 5.11 to before 5.15.99; 5.16 to before 6.1.16; 6.2 to before 6.2.3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.25 to before 4.14.308; 4.15 to before 4.19.276; 4.20 to before 5.4.235; 5.5 to before 5.10.173; 5.11 to before 5.15.99; 5.16 to before 6.1.16; 6.2 to before 6.2.3 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3, 6.3

Red Hat 15 advisories

  • RHSA-2025:23445 Released 2025-12-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.178.1.el8_2, kernel-4.18.0-193.178.1.el8_2, kernel-abi-whitelists-4.18.0-193.178.1.el8_2 +14
  • RHSA-2025:22752 Released 2025-12-04 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.179.1.el8_4, kernel-4.18.0-305.179.1.el8_4, kernel-abi-stablelists-4.18.0-305.179.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.179.1.el8_4, kernel-4.18.0-305.179.1.el8_4, kernel-abi-stablelists-4.18.0-305.179.1.el8_4 +14
  • RHSA-2025:21128 Released 2025-11-12 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-core-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-5.14.0-284.146.1.rt14.431.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-core-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-5.14.0-284.146.1.rt14.431.el9_2 +11
Show 12 more Red Hat advisories
  • RHSA-2025:21112 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-611.7.1.el9_7, kernel-64k-debug-devel-matched-5.14.0-611.7.1.el9_7, kernel-64k-devel-5.14.0-611.7.1.el9_7 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-611.7.1.el9_7, kernel-64k-5.14.0-611.7.1.el9_7, kernel-64k-core-5.14.0-611.7.1.el9_7 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-611.7.1.el9_7, libperf-5.14.0-611.7.1.el9_7
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-611.7.1.el9_7, kernel-rt-64k-5.14.0-611.7.1.el9_7, kernel-rt-64k-core-5.14.0-611.7.1.el9_7 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-611.7.1.el9_7, kernel-rt-core-5.14.0-611.7.1.el9_7, kernel-rt-debug-5.14.0-611.7.1.el9_7 +9
  • RHSA-2025:21084 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +14
  • RHSA-2025:21083 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.118.1.el8_8, kernel-4.18.0-477.118.1.el8_8, kernel-abi-stablelists-4.18.0-477.118.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.118.1.el8_8, kernel-4.18.0-477.118.1.el8_8, kernel-abi-stablelists-4.18.0-477.118.1.el8_8 +14
  • RHSA-2025:21082 Released 2025-11-12 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.142.1.rt56.1294.el7, kernel-rt-debug-3.10.0-1160.142.1.rt56.1294.el7, kernel-rt-debug-devel-3.10.0-1160.142.1.rt56.1294.el7 +4
  • RHSA-2025:21063 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.142.1.el7, kernel-3.10.0-1160.142.1.el7, kernel-abi-whitelists-3.10.0-1160.142.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.142.1.el7, kernel-tools-libs-devel-3.10.0-1160.142.1.el7
  • RHSA-2025:21051 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.146.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.146.1.el9_2, kernel-64k-devel-5.14.0-284.146.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.146.1.el9_2, kernel-5.14.0-284.146.1.el9_2, kernel-64k-5.14.0-284.146.1.el9_2 +29
  • RHSA-2025:19492 Released 2025-11-03 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.151.1.el9_0, kernel-debug-devel-matched-5.14.0-70.151.1.el9_0, kernel-devel-5.14.0-70.151.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.151.1.el9_0, kernel-5.14.0-70.151.1.el9_0, kernel-abi-stablelists-5.14.0-70.151.1.el9_0 +14
  • RHSA-2025:19268 Released 2025-10-29 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.151.1.rt21.223.el9_0, kernel-rt-core-5.14.0-70.151.1.rt21.223.el9_0, kernel-rt-debug-5.14.0-70.151.1.rt21.223.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.151.1.rt21.223.el9_0, kernel-rt-core-5.14.0-70.151.1.rt21.223.el9_0, kernel-rt-debug-5.14.0-70.151.1.rt21.223.el9_0 +7
  • RHSA-2025:19104 Released 2025-10-27 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.96.1.el9_4, libperf-5.14.0-427.96.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.96.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.96.1.el9_4, kernel-64k-devel-5.14.0-427.96.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.96.1.el9_4, kernel-5.14.0-427.96.1.el9_4, kernel-64k-5.14.0-427.96.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.96.1.el9_4, kernel-rt-core-5.14.0-427.96.1.el9_4, kernel-rt-debug-5.14.0-427.96.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.96.1.el9_4, kernel-rt-core-5.14.0-427.96.1.el9_4, kernel-rt-debug-5.14.0-427.96.1.el9_4 +11
  • RHSA-2025:18297 Released 2025-10-20 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.80.1.el8_10, kernel-4.18.0-553.80.1.el8_10, kernel-abi-stablelists-4.18.0-553.80.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.80.1.el8_10
  • RHSA-2025:18298 Released 2025-10-20 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.80.1.rt7.421.el8_10, kernel-rt-core-4.18.0-553.80.1.rt7.421.el8_10, kernel-rt-debug-4.18.0-553.80.1.rt7.421.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.80.1.rt7.421.el8_10, kernel-rt-core-4.18.0-553.80.1.rt7.421.el8_10, kernel-rt-debug-4.18.0-553.80.1.rt7.421.el8_10 +7
  • RHSA-2025:17760 Released 2025-10-13 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.52.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.52.1.el9_6, kernel-64k-devel-5.14.0-570.52.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.52.1.el9_6, kernel-64k-5.14.0-570.52.1.el9_6, kernel-64k-core-5.14.0-570.52.1.el9_6 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.52.1.el9_6, libperf-5.14.0-570.52.1.el9_6
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.52.1.el9_6, kernel-rt-64k-5.14.0-570.52.1.el9_6, kernel-rt-64k-core-5.14.0-570.52.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.52.1.el9_6, kernel-rt-core-5.14.0-570.52.1.el9_6, kernel-rt-debug-5.14.0-570.52.1.el9_6 +11

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:17760, RHSA-2025:21112
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:19492
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:21051
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:18297
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:17760, RHSA-2025:21112
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2025:23445
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2025:22752
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:21084
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:21084
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2025:21083
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2025:19492
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:21051
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2025:22752
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2025:21084
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2025:21083
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:18297
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:17760, RHSA-2025:21112
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2025:18298
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2025:19268
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2025:18298
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:17760, RHSA-2025:21112
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2025:19268
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2025:21128
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:17760, RHSA-2025:21112
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:21128
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:21063
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:21063
Red Hat Enterprise Linux for Real Time (v. 7 ELS)Fixed RHSA-2025:21082
Not affected: 1 product
  • Red Hat Enterprise Linux 10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-53373
  2. 2026-10-03 Alias added: GHSA-gxr7-4mfg-37c7

References

Patch 8

  • 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
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences