CVE-2022-48641

netfilter: ebtables: fix memory leak when blob is malformed

MEDIUM

5.5

CVSS Score

Published: April 28, 2024 at 12:59 PM UTC

Updated: June 17, 2026 at 05:15 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: fix memory leak when blob is malformed The bug fix was incomplete, it "replaced" crash with a memory leak. The old code had an assignment to "ret" embedded into the conditional, restore this.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.14.292 ≤ v < 4.14.2954.19.257 ≤ v < 4.19.2605.10.140 ≤ v < 5.10.1465.15.64 ≤ v < 5.15.715.19.6 ≤ v < 5.19.125.4.212 ≤ v < 5.4.215160c4eb47db03b96c0c425358e7595ebefe8094d1b2c5428f773d60c116c7b1e390432e0cfb63cd6358765beb836f5fc2ed26b5df4140d5d3548ac114.14.292 4.19.257 5.10.140 5.15.64 5.19.6 5.4.212624c30521233e110cf50ba01980a591e045036ae7997eff82828304b780dc0a39707e1946d6f1ebfafd01382594d643e1adeb16826423b418cdf8b8be53cfa017bf4575d0b948a8f45313ef66d897136

Vendor states this is fixed in 11ebf32fde46572b0aaf3c2bdd97d923ef5a03ab (fixed)

Vendor states this is fixed in 1e98318af2f163eadaff815abcef38d27ca92c1e (fixed)

Vendor states this is fixed in 38cf372b17f0a5f35c1b716a100532d539f0eb33 (fixed)

Vendor states this is fixed in 62ce44c4fff947eebdf10bb582267e686e6835c9 (fixed)

Vendor states this is fixed in 754e8b74281dd54a324698803483f47cf3355ae1 (fixed)

Vendor states this is fixed in d5917b7af7cae0e2804f9d127a03268035098b7f (fixed)

Vendor states this is fixed in ebd97dbe3c55d68346b9c5fb00634a7f5b10bbee (fixed)

Affected range stops below 4.14.295, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.19.260, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.10.146, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.15.71, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.19.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.4.215, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references