USN-7797-1 linux, linux-kvm vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Virtio block driver; - Media drivers; - Network drivers; - Framebuffer layer; - BTRFS file system; - Ext4 file...

USN-7796-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Framebuffer layer; - BTRFS file system; - Ext4 file system; - Network file system NFS server daemon; - Packet...

A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows a local user on a vulnerable system to unmount other users' filesystems that are either world-writable themselves (like /tmp) or mounted in a world-writable directory. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.

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Symlink Exchange Can Allow Host Filesystem Access

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Controller/Async/FilesystemManager.php in the filemanager in Bolt allows remote attacke

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Bolt before 3.6.10 has XSS via createFolder or createFile in Controller/Async/FilesystemManager.php

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SUSE CVE-2022-50465

In the Linux kernel, the following vulnerability has been resolved: ext4: fix leaking uninitialized memory in fast-commit journal When space at the end of fast-commit journal blocks is unused, make sure to zero it out so that uninitialized memory is not leaked to disk...

podman: Build Context Bind Mount

A flaw was found in Podman. In a Containerfile or Podman, data written to RUN --mount=type=bind mounts during the podman build is not discarded. This issue can lead to files created within the container appearing in the temporary build context directory on the host, leaving the created files...

CVE-2023-53511

In the Linux kernel, the following vulnerability has been resolved: iouring: fix fget leak when fs don't support nowait buffered read Heming reported a BUG when using iouring doing link-cp on ocfs2. 1 Do the following steps can reproduce this BUG: mount -t ocfs2 /dev/vdc /mnt/ocfs2 cp testfile...

CVE-2023-53506

In the Linux kernel, the following vulnerability has been resolved: udf: Do not bother merging very long extents When merging very long extents we try to push as much length as possible to the first extent. However this is unnecessarily complicated and not really worth the trouble. Furthermore...

CVE-2023-53503

In the Linux kernel, the following vulnerability has been resolved: ext4: allow ext4getgroupinfo to fail Previously, ext4getgroupinfo would treat an invalid group number as BUG, since in theory it should never happen. However, if a malicious attaker or fuzzer modifies the superblock via the block...

CVE-2023-53485

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfsdmap.c:1965:6 index -84 is out of range for type 's8341' aka 'signed char341'...

CVE-2022-50455

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2022-50436

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 "ext4: fixup ext4fctrack functions' signature" extended the scope of the transaction in ext4unlink too far, making it include the call to ext4findentry...

UBUNTU-CVE-2023-53457

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the...

UBUNTU-CVE-2022-50435

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid crash when inline data creation follows DIO write When inode is created and written to using direct IO, there is nothing to clear the EXT4STATEMAYINLINEDATA flag. Thus when inode gets truncated later to say 1 byte and...

UBUNTU-CVE-2022-50456

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix resolving backrefs for inline extent followed by prealloc If a file consists of an inline extent followed by a regular or prealloc extent, then a legitimate attempt to resolve a logical address in the non-inline region...

CVE-2023-53503

In the Linux kernel, the vulnerability CVE-2023-53503 affects ext4: ext4_get_group_info() could underflow when computing a block group if s_first_data_block is set to an extremely large value due to a malicious attacker with write access to the block device while the filesystem is mounted. This c...

CVE-2023-53485

CVE-2023-53485 affects the Linux kernel JFS code path. The UBSAN out-of-bounds access in fs/jfs/jfs_dmap.c:1965 was triggered when dbAllocDmapLev accessed dp->tree.stree[leafidx + LEAFIND] with a negative leafidx. The patch adds a guard in dbAllocDmapLev to return an I/O error if leafidx is ne...

CVE-2023-53485 fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfsdmap.c:1965:6 index -84 is out of range for type 's8341' aka 'signed char341'...