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CVE-2022-49564

crypto: qat - add param check for DH

High7.8EPSS 0.28%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - add param check for DH Reject requests with a source buffer that is bigger than the size of the key. This is to prevent a possible integer underflow that might happen when copying the source scatterlist into a linear buffer.

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 18 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-49564, by who scored it
Scored byCVSSScoreVector
LinuxCNA (assigner)3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP (enrichment)3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.28% · top 79% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

Affected products

  • Linux · Linux

    • affected c9839143ebbf5e821128da44f7e271d745aab19e – < e7f979ed51f96495328157df663c835b17db1e30
    • affected c9839143ebbf5e821128da44f7e271d745aab19e – < 76c9216833e7c20a67c987cf89719a3f01666aaa
    • affected c9839143ebbf5e821128da44f7e271d745aab19e – < 2acbb8771f6ac82422886e63832ee7a0f4b1635b

  • Linux · Linux

    • affected 4.8
    • unaffected < 4.8
    • unaffected 5.15.58 – ≤ 5.15.*
    • unaffected 5.18.15 – ≤ 5.18.*
    • unaffected 5.19 – ≤ *

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .