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TI-2023-28990 Aliases CVE-2023-52653GHSA-g77r-j94w-3wm3

SUNRPC: fix a memleak in gss_import_v2_context

Priority LOW 25CWE-401Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 9 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-401.

Summary

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: fix a memleak in gss_import_v2_context The ctx->mech_used.data allocated by kmemdup is not freed in neither gss_import_v2_context nor it only caller gss_krb5_import_sec_context, which frees ctx on error. Thus, this patch reform the last call of gss_import_v2_context to the gss_krb5_import_ctx_v2, preventing the memleak while keepping the return formation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00275 19th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.191, 6.6.23, 6.7.11 +2Red Hat: 3 advisoriesRed Hat: 9 fixed, 3 without a fix

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

VendorProductAffected versionsFixed inStatusSource
LinuxLinux2.6.35 and later6.1.191, 6.6.23, 6.7.11, 6.8.2, 6.9Patch availableCNA
  • Linux VendorLinux Affected 2.6.35 and later Fixed in 6.1.191, 6.6.23, 6.7.11, 6.8.2, 6.9 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*2.6.35 to before 6.6.23; 6.7 to before 6.7.11; 6.8 to before 6.8.2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.35 to before 6.6.23; 6.7 to before 6.7.11; 6.8 to before 6.8.2 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.23, 6.7.11, 6.8.2, 6.9

Red Hat 3 advisories

  • RHSA-2025:3510 Released 2025-04-02 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.62.1.el9_4, libperf-5.14.0-427.62.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.62.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.62.1.el9_4, kernel-64k-devel-5.14.0-427.62.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.62.1.el9_4, kernel-5.14.0-427.62.1.el9_4, kernel-64k-5.14.0-427.62.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.62.1.el9_4, kernel-rt-core-5.14.0-427.62.1.el9_4, kernel-rt-debug-5.14.0-427.62.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.62.1.el9_4, kernel-rt-core-5.14.0-427.62.1.el9_4, kernel-rt-debug-5.14.0-427.62.1.el9_4 +11
  • RHSA-2024:5101 Released 2024-08-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.16.1.el8_10, kernel-4.18.0-553.16.1.el8_10, kernel-abi-stablelists-4.18.0-553.16.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.16.1.el8_10
  • RHSA-2024:5102 Released 2024-08-08 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +7

Vendor assessments

Red Hat

Red Hat rating: Low. 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 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:3510
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:3510
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:5101
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:3510
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:5101
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2024:5102
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2024:5102
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:3510
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:3510

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-52653
  2. 2026-10-03 Alias added: GHSA-g77r-j94w-3wm3
  3. 2026-10-30 Fix available: Linux/Linux@32a15b6a9a0ac326ca65ce988a1ba046517af3d5, Linux/[email protected] · CNA
  4. 2026-10-30 1 new reference · CNA

References

Patch 4

Other 1

  • 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

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