CVE-2022-49340

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...

UBUNTU-CVE-2022-49340

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...

UBUNTU-CVE-2022-49497

In the Linux kernel, the following vulnerability has been resolved: net: remove two BUG from skbchecksumhelp I have a syzbot report that managed to get a crash in skbchecksumhelp If syzbot can trigger these BUG, it makes sense to replace them with more friendly WARNONONCE since skbchecksumhelp ca...

DEBIAN-CVE-2022-49221

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: populate connector of struct dppanel DP CTS test case 4.2.2.6 has valid edid with bad checksum on purpose and expect DP source return correct checksum. During drm edid read, correct edid checksum is calculated and...

UBUNTU-CVE-2022-49221

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: populate connector of struct dppanel DP CTS test case 4.2.2.6 has valid edid with bad checksum on purpose and expect DP source return correct checksum. During drm edid read, correct edid checksum is calculated and...

CVE-2022-49497 net: remove two BUG() from skb_checksum_help()

In the Linux kernel, the following vulnerability has been resolved: net: remove two BUG from skbchecksumhelp I have a syzbot report that managed to get a crash in skbchecksumhelp If syzbot can trigger these BUG, it makes sense to replace them with more friendly WARNONONCE since skbchecksumhelp ca...

CVE-2022-49340

The CVE-2022-49340 entry refers to the Linux kernel GRE/IPGRE path where ipgre_xmit validates csum_start for CHECKSUM_PARTIAL packets. The issue arose when skb_pull and GRE with TUNNEL_CSUM could cause an overflow via lco_csum if skb_checksum_start(skb) was compared against skb->data without p...

CVE-2022-49340 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...

CVE-2022-49340

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...

CVE-2022-49221 drm/msm/dp: populate connector of struct dp_panel

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: populate connector of struct dppanel DP CTS test case 4.2.2.6 has valid edid with bad checksum on purpose and expect DP source return correct checksum. During drm edid read, correct edid checksum is calculated and...

CVE-2022-49221 drm/msm/dp: populate connector of struct dp_panel

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: populate connector of struct dppanel DP CTS test case 4.2.2.6 has valid edid with bad checksum on purpose and expect DP source return correct checksum. During drm edid read, correct edid checksum is calculated and...

CVE-2022-49221

The CVE-2022-49221 issue affects the Linux kernel DRM MSM DP driver. A NULL pointer dereference could occur because struct dp_panel::connector was never assigned (connector stored in msm_dp::connector). The problem manifested during DP CTS test 4.2.2.6 when reading EDID, causing a NULL dereferenc...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from ipgrexmit not properly validating csumstart, which could result in a buffer overflow...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftpayload: The offset and length are sanitized before calling skbchecksum. If the access to the sum of the offset and length exceeds the skbuff length, then skbchecksum triggers a BUGON. skbchecksum internally subtrac...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nfsd: map the EBADMSG to nfserrio to avoid warning Ext4 will throw -EBADMSG through ext4readdir when a checksum error occurs, resulting in the following WARNING. Fix it by mapping EBADMSG to nfserrio. nfsdbufferedreaddir iterated...

Astra Linux – Vulnerability in rsync

A flaw was discovered in rsync. It allows a server to enumerate the contents of an arbitrary file from the client’s machine. This issue occurs when files are being copied from the client to the server. During this process, the rsync server sends checksums of local data to the client for compariso...

Astra Linux – Vulnerability in rsync

A heap-based buffer overflow flaw was discovered in the rsync daemon. This issue arises due to improper handling of the attacker-controlled checksum length s2length in the code. When MAXDIGESTLEN exceeds the fixed SUMLENGTH 16 bytes, an attacker can write data beyond the buffer’s boundaries...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Missing check for virtio Two missing checks in virtionethdrtoskb allowed syzbot to crash kernels again. 1. After the skbsegment function, the buffer may become non-linear nrfrags != 0. However, since the SKBTXSHAREDFRAG...

Astra Linux – Vulnerability in rsync

A flaw was discovered in rsync that can be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length s2length, causing a comparison between a checksum and uninitialized memory, and resulting in the leakage of one byte of uninitialized stack data ...

USN-7206-4 rsync regression

USN-7206-3 fixed vulnerabilities in rsync for Ubuntu 24.10. The update introduced a regression in rsync. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Simon Scannell, Pedro Gallegos, and Jasiel Spelman discovered that rsync did not properly handle...