Vulnerability in Kernel (CVE-2023-53349)

Summary

Vulnerability in Kernel (CVE-2023-53349). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 5.10.173, 5.15.99, 6.1.16, 6.2.3 or later.

Original description

The description as published by the source.

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

media: ov2740: Fix memleak in ov2740_init_controls()

There is a kmemleak when testing the media/i2c/ov2740.c with bpf mock
device:

unreferenced object 0xffff8881090e19e0 (size 16):
comm "51-i2c-ov2740", pid 278, jiffies 4294781584 (age 23.613s)
hex dump (first 16 bytes):
00 f3 7c 0b 81 88 ff ff 80 75 6a 09 81 88 ff ff ..|......uj.....
backtrace:
[<000000004e9fad8f>] __kmalloc_node+0x44/0x1b0
[<0000000039c802f4>] kvmalloc_node+0x34/0x180
[<000000009b8b5c63>] v4l2_ctrl_handler_init_class+0x11d/0x180
[videodev]
[<0000000038644056>] ov2740_probe+0x37d/0x84f [ov2740]
[<0000000092489f59>] i2c_device_probe+0x28d/0x680
[<000000001038babe>] really_probe+0x17c/0x3f0
[<0000000098c7af1c>] __driver_probe_device+0xe3/0x170
[<00000000e1b3dc24>] device_driver_attach+0x34/0x80
[<000000005a04a34d>] bind_store+0x10b/0x1a0
[<00000000ce25d4f2>] drv_attr_store+0x49/0x70
[<000000007d9f4e9a>] sysfs_kf_write+0x8c/0xb0
[<00000000be6cff0f>] kernfs_fop_write_iter+0x216/0x2e0
[<0000000031ddb40a>] vfs_write+0x658/0x810
[<0000000041beecdd>] ksys_write+0xd6/0x1b0
[<0000000023755840>] do_syscall_64+0x38/0x90
[<00000000b2cc2da2>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

ov2740_init_controls() won't clean all the allocated resources in fail
path, which may causes the memleaks. Add v4l2_ctrl_handler_free() to
prevent memleak.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2023-53349 has been found in Kernel.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Kernel to 5.10.173, 5.15.99, 6.1.16, 6.2.3 or later.
If unsure, ask your IT team or search "Kernel CVE-2023-53349" on the vendor's site.

CVE-2023-53349 (Kernel)
Attack vector: local / no user interaction
Patched: 5.10.173, 5.15.99, 6.1.16, 6.2.3 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (unclassified) exists in Kernel.

📍 Affected scope

Check the vendor advisory for the affected versions of Kernel.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 5.10.173, 5.15.99, 6.1.16, 6.2.3.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Kernel' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposure identify
```
grep -r 'Kernel' . | grep -v node_modules
```
リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で Kernel を grep し、稼働しているサービス・バージョンを把握する。
2
Apply patch patch
```
Upgrade Kernel to 5.10.173, 5.15.99, 6.1.16, 6.2.3
```
ステージング環境で 5.10.173, 5.15.99, 6.1.16, 6.2.3 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
3
Post-deployment verification verify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Linux Kernel

[{"type":"ECOSYSTEM","events":[{"introduced":"5.8.0"},{"fixed":"5.10.173"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.99"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.3"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

Debian DEBIAN-CVE-2023-53349 linux Fixed in: 5.10.178-1
Ubuntu UBUNTU-CVE-2023-53349 linux-hwe-edge