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CVE-2024-41044— ppp: reject claimed-as-LCP but actually malformed packets

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，该漏洞源于在ppp_async_encode函数假设LCP数据包有效，但未检查LCP数据包的实际内容，可能导致处理错误。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 97d1efd8be26615ff680cdde86937d5943138f37 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 6e8f1c21174f9482033bbb59f13ce1a8cbe843c3 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3ba12c2afd933fc1bf800f6d3f6c7ec8f602ce56 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< ebc5c630457783d17d0c438b0ad70b232a64a82f affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3134bdf7356ed952dcecb480861d2afcc1e40492 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 099502ca410922b56353ccef2749bc0de669da78 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< d683e7f3fc48f59576af34631b4fb07fd931343e affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< f2aeb7306a898e1cbd03963d376f4b6656ca2b55 affected
… +10 more rows
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I. Basic Information for CVE-2024-41044

Vulnerability Information
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Vulnerability Title
ppp: reject claimed-as-LCP but actually malformed packets
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ppp: reject claimed-as-LCP but actually malformed packets Since 'ppp_async_encode()' assumes valid LCP packets (with code from 1 to 7 inclusive), add 'ppp_check_packet()' to ensure that LCP packet has an actual body beyond PPP_LCP header bytes, and reject claimed-as-LCP but actually malformed data otherwise.
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，该漏洞源于在ppp_async_encode函数假设LCP数据包有效，但未检查LCP数据包的实际内容，可能导致处理错误。
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 97d1efd8be26615ff680cdde86937d5943138f37 -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2024-41044

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III. Intelligence Information for CVE-2024-41044

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Other References for CVE-2024-41044 (8)

Same Patch Batch · Linux · 2024-07-29 · 121 CVEs total

CVE-2024-41040 9.8 CRITICAL net/sched: Fix UAF when resolving a clash
CVE-2024-41081 9.8 CRITICAL ila: block BH in ila_output()
CVE-2024-41073 9.8 CRITICAL nvme: avoid double free special payload
CVE-2024-41091 8.8 HIGH tun: add missing verification for short frame
CVE-2024-41090 8.8 HIGH tap: add missing verification for short frame
CVE-2024-41046 8.8 HIGH net: ethernet: lantiq_etop: fix double free in detach
CVE-2024-42083 8.8 HIGH ionic: fix kernel panic due to multi-buffer handling
CVE-2024-41062 8.8 HIGH bluetooth/l2cap: sync sock recv cb and release
CVE-2024-41045 7.8 HIGH bpf: Defer work in bpf_timer_cancel_and_free
CVE-2024-41096 7.8 HIGH PCI/MSI: Fix UAF in msi_capability_init
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-41051 7.8 HIGH cachefiles: wait for ondemand_object_worker to finish when dropping object
CVE-2024-41057 7.8 HIGH cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
CVE-2024-41060 7.8 HIGH drm/radeon: check bo_va->bo is non-NULL before using it
CVE-2024-41059 7.8 HIGH hfsplus: fix uninit-value in copy_name
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes
CVE-2024-42075 7.8 HIGH bpf: Fix remap of arena.
CVE-2024-42066 7.8 HIGH drm/xe: Fix potential integer overflow in page size calculation
CVE-2024-42064 7.8 HIGH drm/amd/display: Skip pipe if the pipe idx not set properly
CVE-2024-41086 7.8 HIGH bcachefs: Fix sb_field_downgrade validation

Showing top 20 of 121 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-41044

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