Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-52925— netfilter: nf_tables: don't fail inserts if duplicate has expired

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于对过期重复元素的处理不当。攻击者利用该漏洞可以破坏集合完整性。

AI Predicted 4.3 Difficulty: Theoretical EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux b15ea4017af82011dd55225ce77cce3d4dfc169c< 891ca5dfe3b718b441fc786014a7ba8f517da188 affected
7c7e658a36f8b1522bd3586d8137e5f93a25ddc5< af78b0489e8898a8c9449ffc0fdd2e181916f0d4 affected
59dab3bf0b8fc08eb802721c0532f13dd89209b8< 59ee68c437c562170265194a99698c805a686bb3 affected
bd156ce9553dcaf2d6ee2c825d1a5a1718e86524< 156369a702c33ad5434a19c3a689bfb836d4e0b8 affected
24138933b97b055d486e8064b4a1721702442a9b< 7845914f45f066497ac75b30c50dbc735e84e884 affected
94313a196b44184b5b52c1876da6a537701b425a affected
1da4874d05da1526b11b82fc7f3c7ac38749ddf8 affected
4.19.316< 4.20 affected
… +2 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-52925

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
netfilter: nf_tables: don't fail inserts if duplicate has expired
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: don't fail inserts if duplicate has expired nftables selftests fail: run-tests.sh testcases/sets/0044interval_overlap_0 Expected: 0-2 . 0-3, got: W: [FAILED] ./testcases/sets/0044interval_overlap_0: got 1 Insertion must ignore duplicate but expired entries. Moreover, there is a strange asymmetry in nft_pipapo_activate: It refetches the current element, whereas the other ->activate callbacks (bitmap, hash, rhash, rbtree) use elem->priv. Same for .remove: other set implementations take elem->priv, nft_pipapo_remove fetches elem->priv, then does a relookup, remove this. I suspect this was the reason for the change that prompted the removal of the expired check in pipapo_get() in the first place, but skipping exired elements there makes no sense to me, this helper is used for normal get requests, insertions (duplicate check) and deactivate callback. In first two cases expired elements must be skipped. For ->deactivate(), this gets called for DELSETELEM, so it seems to me that expired elements should be skipped as well, i.e. delete request should fail with -ENOENT error.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于对过期重复元素的处理不当。攻击者利用该漏洞可以破坏集合完整性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux b15ea4017af82011dd55225ce77cce3d4dfc169c ~ 891ca5dfe3b718b441fc786014a7ba8f517da188 -
Linux Linux 6.4.11 ~ 6.4.12 -

II. Public POCs for CVE-2023-52925

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-52925

请登录查看更多情报信息。

Patches & Fixes for CVE-2023-52925 (5)

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52925

No comments yet

Leave a comment