CVE-2024-27061

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-05-01. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week

Also known asEUVD-2024-24323 (ENISA EUVD) · GHSA-rf6j-8jq6-g935 (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

crypto: sun8i-ce - Fix use after free in unprepare

sun8i_ce_cipher_unprepare should be called before crypto_finalize_skcipher_request, because client callbacks may immediately free memory, that isn't needed anymore. But it will be used by unprepare after free. Before removing prepare/unprepare callbacks it was handled by crypto engine in crypto_finalize_request.

Usually that results in a pointer dereference problem during a in crypto selftest. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000030 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000004716d000 [0000000000000030] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] SMP

This problem is detected by KASAN as well. ================================================================== BUG: KASAN: slab-use-after-free in sun8i_ce_cipher_do_one+0x6e8/0xf80 [sun8i_ce] Read of size 8 at addr ffff00000dcdc040 by task 1c15000.crypto-/373

Hardware name: Pine64 PinePhone (1.2) (DT) Call trace: dump_backtrace+0x9c/0x128 show_stack+0x20/0x38 dump_stack_lvl+0x48/0x60 print_report+0xf8/0x5d8 kasan_report+0x90/0xd0 __asan_load8+0x9c/0xc0 sun8i_ce_cipher_do_one+0x6e8/0xf80 [sun8i_ce] crypto_pump_work+0x354/0x620 [crypto_engine] kthread_worker_fn+0x244/0x498 kthread+0x168/0x178 ret_from_fork+0x10/0x20

Allocated by task 379: kasan_save_stack+0x3c/0x68 kasan_set_track+0x2c/0x40 kasan_save_alloc_info+0x24/0x38 __kasan_kmalloc+0xd4/0xd8 __kmalloc+0x74/0x1d0 alg_test_skcipher+0x90/0x1f0 alg_test+0x24c/0x830 cryptomgr_test+0x38/0x60 kthread+0x168/0x178 ret_from_fork+0x10/0x20

Freed by task 379: kasan_save_stack+0x3c/0x68 kasan_set_track+0x2c/0x40 kasan_save_free_info+0x38/0x60 __kasan_slab_free+0x100/0x170 slab_free_freelist_hook+0xd4/0x1e8 __kmem_cache_free+0x15c/0x290 kfree+0x74/0x100 kfree_sensitive+0x80/0xb0 alg_test_skcipher+0x12c/0x1f0 alg_test+0x24c/0x830 cryptomgr_test+0x38/0x60 kthread+0x168/0x178 ret_from_fork+0x10/0x20

The buggy address belongs to the object at ffff00000dcdc000 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 64 bytes inside of freed 256-byte region [ffff00000dcdc000, ffff00000dcdc100)

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 1, 2024

Last Modified

August 5, 2026

Advisory Details (3)

Auto-updated Aug 4, 2026
Patch available.
Web page

crypto: sun8i-ce - Fix use after free in unprepare - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dc60b25540c82fc4baa95d1458ae96ead21859e0
Web page

crypto: sun8i-ce - Fix use after free in unprepare - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/51a7d338c212e0640b1aca52ba6590d5bea49879
Web page

crypto: sun8i-ce - Fix use after free in unprepare - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/183420038444547c149a0fc5f58e792c2752860c

Vendor Advisories for CVE-2024-27061(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
linuxKernel @ 6.6.24 (fixes >=6.6.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.7.12-1: fixed in 6.7.12-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.7.12-1: fixed in 6.7.12-1
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 41× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 98 of 220 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 122 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:40 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-11-01 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-30 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-10-29 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-28 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-10-27 20:25 UTCEG score recompute
  8. 2026-10-27 20:25 UTCGHSA enrichmentGHSA-rf6j-8jq6-g935 · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-27 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-25 17:15 UTCEG score recompute
  12. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-10-20 20:17 UTCEG score recompute
  18. 2026-10-20 20:17 UTCVendor advisory
  19. 2026-10-20 20:17 UTCGHSA enrichmentGHSA-rf6j-8jq6-g935 · GitHub severity HIGH · GitHub CVSS 7.8
  20. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-10-19 20:25 UTCOSV refresh
  22. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-18 07:22 UTCEG score recompute
  25. 2026-10-17 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
Show 73 more
  1. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  5. 2026-10-12 17:59 UTCEG score recompute
  6. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  7. 2026-10-11 21:23 UTCEG score recompute
  8. 2026-10-11 16:17 UTCEG score recompute
  9. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  10. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-10-08 17:07 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  13. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-09-30 17:00 UTCEG score recompute
  20. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  22. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-09-27 01:12 UTCOSV refresh
  24. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  25. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  26. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  27. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  28. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  29. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  30. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  31. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  32. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  33. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  34. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  35. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-09-07 10:48 UTCOSV refresh
  37. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  38. 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  39. 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  40. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  41. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  42. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  43. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  44. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  45. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  46. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  47. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  48. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  49. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  50. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  51. 2026-08-20 19:31 UTCOSV refresh
  52. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  53. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  54. 2026-08-17 13:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  55. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  56. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  57. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  58. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  59. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  60. 2026-08-11 13:40 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  61. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  62. 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  63. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  64. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  65. 2026-08-05 12:16 UTCEG score recompute
  66. 2026-08-05 12:16 UTCVendor advisory
  67. 2026-08-05 12:16 UTCGHSA enrichmentGHSA-rf6j-8jq6-g935 · GitHub severity HIGH · GitHub CVSS 7.8
  68. 2026-08-04 15:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  69. 2026-08-04 12:15 UTCEG score recompute
  70. 2026-08-04 12:15 UTCVendor advisory
  71. 2026-08-04 12:15 UTCGHSA enrichmentGHSA-rf6j-8jq6-g935 · GitHub severity HIGH · GitHub CVSS 7.8
  72. 2026-08-04 10:36 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  73. 2026-08-03 10:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile

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Frequently asked(5)

What is CVE-2024-27061?
CVE-2024-27061 is a high-severity vulnerability; its CVE record was published on May 1, 2024. In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ce - Fix use after free in unprepare sun8i_ce_cipher_unprepare should be called before crypto_finalize_skcipher_request, because client callbacks may immediately free memory, that isn't needed anymore. But it will be…
When was the CVE record for CVE-2024-27061 published?
The CVE record for CVE-2024-27061 was published on May 1, 2024. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 5, 2026; the record at its source may have been updated since.
Is CVE-2024-27061 actively exploited?
CVE-2024-27061 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-27061?
CVE-2024-27061 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2024-27061?
A fix for CVE-2024-27061 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-27061 are linked in the Vendor Advisories panel on this page.

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