kernel: Infinite recursion in ahash.c by triggering EBUSY on a full queue
Published Apr 10, 2017
7.5
HIGHCVSS 3.1
EPSS 4.26%
Description
crypto/ahash.c in the Linux kernel through 4.10.9 allows attackers to cause a denial of service (API operation calling its own callback, and infinite recursion) by triggering EBUSY on a full queue.
Affected products
No data.
- ≥ 3.15 · < 3.16.44
- ≥ 3.17 · < 3.18.50
- ≥ 3.19 · < 4.1.40
- ≥ 4.2 · < 4.4.63
- ≥ 4.5 · < 4.9.24
- ≥ 4.10 · < 4.10.12
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2 as the code where the flaw was found is not present in these products.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.26% (0.04257) | 90.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.26% (0.04257) | 89.74th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.73% (0.00729) | 70.34th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.24% (0.02244) | 74.22th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.24% (0.00244) | 64.83th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.24% (0.00244) | 63.44th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.24% (0.00244) | 61.19th | v3 (v2023.03.01) |
| May 8, 2023 | 0.26% (0.00258) | 61.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00186) | 54.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01036) | 27.56th | v1 |
| Jan 6, 2022 | 1.04% (0.01036) | 26.95th | v1 |
| Sep 1, 2021 | 1.04% (0.01036) | 62.47th | v1 |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
References (7)
- http://marc.info/?l=linux-crypto-vger&m=149181655623850&w=2 x_refsource_MISCThird Party Advisory
- http://www.securityfocus.com/bid/97534 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-7618 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1441093 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-7618
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03800en_us x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-7618
| Link | Providers | Tags |
|---|---|---|
| http://marc.info/?l=linux-crypto-vger&m=149181655623850&w=2 | x_refsource_MISCThird Party Advisory | |
| http://www.securityfocus.com/bid/97534 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-7618 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1441093 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-7618 | ||
| https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03800en_us | x_refsource_CONFIRMThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-7618 |
Change history (0)
No recorded changes yet.