| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Multiple privilege escalation vulnerabilities were discovered in version 5.2.4 of Pi-hole core. See the referenced GitHub security advisory for details. |
| In the Linux kernel, the following vulnerability has been resolved:
macvlan: add forgotten nla_policy for IFLA_MACVLAN_BC_CUTOFF
The previous commit 954d1fa1ac93 ("macvlan: Add netlink attribute for
broadcast cutoff") added one additional attribute named
IFLA_MACVLAN_BC_CUTOFF to allow broadcast cutfoff.
However, it forgot to describe the nla_policy at macvlan_policy
(drivers/net/macvlan.c). Hence, this suppose NLA_S32 (4 bytes) integer
can be faked as empty (0 bytes) by a malicious user, which could leads
to OOB in heap just like CVE-2023-3773.
To fix it, this commit just completes the nla_policy description for
IFLA_MACVLAN_BC_CUTOFF. This enforces the length check and avoids the
potential OOB read. |
| In the Linux kernel, the following vulnerability has been resolved:
nbd: fix incomplete validation of ioctl arg
We tested and found an alarm caused by nbd_ioctl arg without verification.
The UBSAN warning calltrace like below:
UBSAN: Undefined behaviour in fs/buffer.c:1709:35
signed integer overflow:
-9223372036854775808 - 1 cannot be represented in type 'long long int'
CPU: 3 PID: 2523 Comm: syz-executor.0 Not tainted 4.19.90 #1
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x0/0x3f0 arch/arm64/kernel/time.c:78
show_stack+0x28/0x38 arch/arm64/kernel/traps.c:158
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x170/0x1dc lib/dump_stack.c:118
ubsan_epilogue+0x18/0xb4 lib/ubsan.c:161
handle_overflow+0x188/0x1dc lib/ubsan.c:192
__ubsan_handle_sub_overflow+0x34/0x44 lib/ubsan.c:206
__block_write_full_page+0x94c/0xa20 fs/buffer.c:1709
block_write_full_page+0x1f0/0x280 fs/buffer.c:2934
blkdev_writepage+0x34/0x40 fs/block_dev.c:607
__writepage+0x68/0xe8 mm/page-writeback.c:2305
write_cache_pages+0x44c/0xc70 mm/page-writeback.c:2240
generic_writepages+0xdc/0x148 mm/page-writeback.c:2329
blkdev_writepages+0x2c/0x38 fs/block_dev.c:2114
do_writepages+0xd4/0x250 mm/page-writeback.c:2344
The reason for triggering this warning is __block_write_full_page()
-> i_size_read(inode) - 1 overflow.
inode->i_size is assigned in __nbd_ioctl() -> nbd_set_size() -> bytesize.
We think it is necessary to limit the size of arg to prevent errors.
Moreover, __nbd_ioctl() -> nbd_add_socket(), arg will be cast to int.
Assuming the value of arg is 0x80000000000000001) (on a 64-bit machine),
it will become 1 after the coercion, which will return unexpected results.
Fix it by adding checks to prevent passing in too large numbers. |
| In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix fget leak when fs don't support nowait buffered read
Heming reported a BUG when using io_uring doing link-cp on ocfs2. [1]
Do the following steps can reproduce this BUG:
mount -t ocfs2 /dev/vdc /mnt/ocfs2
cp testfile /mnt/ocfs2/
./link-cp /mnt/ocfs2/testfile /mnt/ocfs2/testfile.1
umount /mnt/ocfs2
Then umount will fail, and it outputs:
umount: /mnt/ocfs2: target is busy.
While tracing umount, it blames mnt_get_count() not return as expected.
Do a deep investigation for fget()/fput() on related code flow, I've
finally found that fget() leaks since ocfs2 doesn't support nowait
buffered read.
io_issue_sqe
|-io_assign_file // do fget() first
|-io_read
|-io_iter_do_read
|-ocfs2_file_read_iter // return -EOPNOTSUPP
|-kiocb_done
|-io_rw_done
|-__io_complete_rw_common // set REQ_F_REISSUE
|-io_resubmit_prep
|-io_req_prep_async // override req->file, leak happens
This was introduced by commit a196c78b5443 in v5.18. Fix it by don't
re-assign req->file if it has already been assigned.
[1] https://lore.kernel.org/ocfs2-devel/ab580a75-91c8-d68a-3455-40361be1bfa8@linux.alibaba.com/T/#t |
| In the Linux kernel, the following vulnerability has been resolved:
ext4: allow ext4_get_group_info() to fail
Previously, ext4_get_group_info() 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
device while it is the file system is mounted, it is possible for
s_first_data_block to get set to a very large number. In that case,
when calculating the block group of some block number (such as the
starting block of a preallocation region), could result in an
underflow and very large block group number. Then the BUG_ON check in
ext4_get_group_info() would fire, resutling in a denial of service
attack that can be triggered by root or someone with write access to
the block device.
For a quality of implementation perspective, it's best that even if
the system administrator does something that they shouldn't, that it
will not trigger a BUG. So instead of BUG'ing, ext4_get_group_info()
will call ext4_error and return NULL. We also add fallback code in
all of the callers of ext4_get_group_info() that it might NULL.
Also, since ext4_get_group_info() was already borderline to be an
inline function, un-inline it. The results in a next reduction of the
compiled text size of ext4 by roughly 2k. |
| SQL injection vulnerability in search_form.php in Softbiz Freelancers Script 1 allows remote attackers to execute arbitrary SQL commands via the sb_protype parameter. |
| Multiple SQL injection vulnerabilities in Softbiz Web Host Directory Script 1.1 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) cid parameter in search_result.php, (2) sbres_id parameter in review.php, (3) cid parameter in browsecats.php, (4) h_id parameter in email.php, and (5) an unspecified parameter to the search module. |
| SQL injection vulnerability in Softbiz FAQ Script 1.1 and earler allows remote attackers to execute arbitrary SQL commands via the id parameter in (1) index.php, (2) faq_qanda.php, (3) refer_friend.php, (4) print_article.php, or (5) add_comment.php. |
| SQL injection vulnerability in Softbiz B2B Trading Marketplace Script 1.1 and earler allows remote attackers to execute arbitrary SQL commands via the cid parameter in (1) selloffers.php, (2) buyoffers.php, (3) products.php, or (4) profiles.php. |
| Multiple cross-site scripting (XSS) vulnerabilities in Softbiz Banner Exchange Script (aka Banner Exchange Network Script) 1.0 allow remote attackers to inject arbitrary web script or HTML via (1) the city parameter in (a) insertmember.php, and (2) a PHPSESSID cookie in (b) lostpassword.php, (c) gen_confirm_mem.php, and (d) index.php. |
| SQL injection vulnerability in searchresult.php in Softbiz Recipes Portal Script allows remote attackers to execute arbitrary SQL commands via the sbcat_id parameter. |
| An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The AppUpgrade binary file, which is used during the firmware installation process, can be modified by an attacker to bypass the digital signature check. This indirectly allows an attacker to install custom firmware in the IVI system. |
| A vulnerability was found in insights-client. This security issue occurs because of insecure file operations or unsafe handling of temporary files and directories that lead to local privilege escalation. Before the insights-client has been registered on the system by root, an unprivileged local user or attacker could create the /var/tmp/insights-client directory (owning the directory with read, write, and execute permissions) on the system. After the insights-client is registered by root, an attacker could then control the directory content that insights are using by putting malicious scripts into it and executing arbitrary code as root (trivially bypassing SELinux protections because insights processes are allowed to disable SELinux system-wide). |
| In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix session use-after-free in multichannel connection
There is a race condition between session setup and
ksmbd_sessions_deregister. The session can be freed before the connection
is added to channel list of session.
This patch check reference count of session before freeing it. |
| SQL injection vulnerability in cat_products.php in SoftBiz Dating Script allows remote attackers to execute arbitrary SQL commands via the cid parameter. NOTE: this might overlap CVE-2006-3271.4. |
| Multiple cross-site scripting (XSS) vulnerabilities in Softbiz Image Gallery (Photo Gallery) allow remote attackers to inject arbitrary web script or HTML via the (1) latest parameter to (a) index.php, (b) images.php, (c) suggest_image.php, and (d) image_desc.php; and the (2) msg parameter to index.php, images.php, and suggest_image.php, and (e) index.php, (f) adminhome.php, (g) config.php, (h) changepassword.php, (i) cleanup.php, (j) browsecats.php, and (k) images.php in admin/. NOTE: the image_desc.php/msg vector is covered by CVE-2006-1660. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information. |
| SQL injection vulnerability in search_result.php in Softbiz Web Host Directory Script, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the host_id parameter, a different vector than CVE-2005-3817. |
| SQL injection vulnerability in index.php in Softbiz Jokes & Funny Pics Script allows remote attackers to execute arbitrary SQL commands via the sbcat_id parameter. |
| Cross-site scripting (XSS) vulnerability in signin.php in Softbiz Freelancers Script 1 allows remote attackers to inject arbitrary web script or HTML via the errmsg parameter. |
| A Man-in-the-Middle issue was discovered in Hyundai Motor America Blue Link 3.9.5 and 3.9.4. Communication channel endpoints are not verified, which may allow a remote attacker to access or influence communications between the identified endpoints. |
