kernel: ip_gre: test csum_start instead of transport header

In the Linux kernel, the following vulnerability has been resolved: ipgre: test csumstart instead of transport header GRE with TUNNELCSUM will apply local checksum offload on CHECKSUMPARTIAL packets. ipgrexmit must validate csumstart after an optional skbpull, else lcocsum may trigger an overflow...

kernel: net: preserve skb_end_offset() in skb_unclone_keeptruesize()

In the Linux kernel, the following vulnerability has been resolved: net: preserve skbendoffset in skbunclonekeeptruesize syzbot found another way to trigger the infamous WARNONONCEdelta truesize value, we also need to make sure TCP wont fill new tailroom that pskbexpandhead was able to get from a...

kernel: veth: ensure skb entering GRO are not cloned.

In the Linux kernel, the following vulnerability has been resolved: veth: ensure skb entering GRO are not cloned. After commit d3256efd8e8b "veth: allow enabling NAPI even without XDP", if GRO is enabled on a veth device and TSO is disabled on the peer device, TCP skbs will go through the NAPI...

GSD-2022-1007095 af_unix: Fix memory leaks of the whole sk due to OOB skb.

afunix: Fix memory leaks of the whole sk due to OOB skb. This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.78 by commit...

GSD-2022-1006845 af_unix: Fix memory leaks of the whole sk due to OOB skb.

afunix: Fix memory leaks of the whole sk due to OOB skb. This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.3 by commit...

PT-2022-35192 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions 5.15.68 through 5.15.76 Description: The issue is related to the skb append pagefrags function in the Linux Kernel, where it does not properly sense the pfmemalloc status. This could potentially lead to security...

A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local unprivileged user to crash the system causing a denial of service.

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AZL-11282 CVE-2022-3586 affecting package kernel for versions less than 5.15.82.1-1

A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the schsfb enqueue function used the socket buffer SKB cb field after the same SKB had been enqueued and freed into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing...

GSD-2022-1006613 ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header

ipvlan: Fix out-of-bound bugs caused by unset skb-macheader This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.330 by commit...

GSD-2022-1006601 ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header

ipvlan: Fix out-of-bound bugs caused by unset skb-macheader This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.215 by commit...

GSD-2022-1006552 bnxt: prevent skb UAF after handing over to PTP worker

bnxt: prevent skb UAF after handing over to PTP worker This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.71 by commit...

GSD-2022-1006527 ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header

ipvlan: Fix out-of-bound bugs caused by unset skb-macheader This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.19.12 by commit...

GSD-2022-1006481 ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header

ipvlan: Fix out-of-bound bugs caused by unset skb-macheader This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0 by commit...

GSD-2022-1006468 bnxt: prevent skb UAF after handing over to PTP worker

bnxt: prevent skb UAF after handing over to PTP worker This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0 by commit...

GSD-2022-1006445 sch_sfb: Don't assume the skb is still around after enqueueing to child

schsfb: Don't assume the skb is still around after enqueueing to child This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.293 by commit...

GSD-2022-1006434 sch_sfb: Don't assume the skb is still around after enqueueing to child

schsfb: Don't assume the skb is still around after enqueueing to child This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.258 by commit...

Ubuntu 20.04 LTS : Linux kernel (GKE) vulnerabilities (USN-5648-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5648-1 advisory. It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of-...

USN-5644-1 linux-gcp-5.15 vulnerabilities

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2021-33655 Duoming...

GSD-2022-1005305 ath11k: fix missing skb drop on htc_tx_completion error

ath11k: fix missing skb drop on htctxcompletion error This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.19.2 by commit...

PT-2022-33563 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions v5.17 through v5.19.1 Description: The issue is related to a missing skb drop on htc tx completion error in the ath11k module. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linu...