Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nilfs2: Fixing the use-after-free bug of nswriter when remounting the filesystem. If a nilfs2 filesystem is downgraded to read-only due to metadata corruption on the disk, and it is remounted with read/write access, or if an...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Fixed a null-ptr-deref issue when acquiring the remote IP address for an Ethernet bearer. Reproduction steps: 1. Create a tun interface. 2. Enable the L2 bearer. 3. Use TIPCNLUDPGETREMOTEIP with a media name set to “tun”...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: virtiopmem: Check the device status before requesting flushing. If a PMEM device is in an invalid state, the driver could wait indefinitely for the host acknowledgment in virtiopmemflush, causing the system to hang. Therefore, a...

Astra Linux – Vulnerability in OpenLDAP

In OpenLDAP versions 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function due to a malicious packet. This leads to a denial of service daemon exits caused by a short timestamp. This issue is related to the schemainit.c file and the...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: exec: Fix for the issue involving the comparison between permission checks and setuid/gid usage When opening a file for execution using dofilpopen, permission checks are performed based on the file’s metadata at that moment. If t...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: udf: The use of uninit-value in udfgetfileshortad has been fixed. A check for overflow was added when calculating alen in udfcurrentaext, to mitigate potential issues with uninit-value usage in udfgetfileshortad. This is related ...

Astra Linux – Vulnerability in sudo

In Sudo version 1.8.29, the fact that a user has been blocked for example, by using the “!” character in the shadow file instead of a password hash was not taken into consideration. This allows an attacker who has access to a Runas ALL sudoer account to impersonate any blocked user. NOTE: The...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

In the Linux kernel, the following vulnerability has been resolved: media: av7110: prevent underflow in writetstodecoder The value of buf4 comes from the user via tsplay. This value is within the u8 range. The final length that we pass to av7110ipackinstantrepack is “len – buf4 + 1 – 4”. Therefor...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: A fix was made to perform a sanity check on the destination blkaddr during recovery. As Wenqing Liu reported in Bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=216456 loop5: A change in capacity was detected, from 0...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: can: gsusb: gsusbreceivebulkcallback: Check actuallength before accessing the header. The driver expects to receive a struct gshostframe in gsusbreceivebulkcallback. Use structgroup to describe the header of the struct gshostfram...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid OGM aggregation when skbtailroom is insufficient. When the OGM aggregation state is toggled at runtime, an existing forwarded packet may have been allocated only with packetlen bytes, while a later packet can...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: Ensure that the internal and UAPI bpfredirect flags do not overlap. The bpfredirectinfo is shared between the SKB and XDP redirection paths. Both paths use the same numerical flag values in the ri-flags field specifically,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: dma-debug: fixed a possible deadlock in radixlock. radixlock should not be held while holding dmahashentryidx.lock. Otherwise, a deadlock scenario may occur when the dma debug API is called while holding rqlock: CPU0 CPU1 CPU2...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KEYS: prevented NULL pointer dereference in findasymmetrickey. In findasymmetrickey, if all NULL values are passed as arguments to id0,1,2, the kernel will first emit a WARN message, but then there will be an oops because id2 wil...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: bridge: Fixed a soft lockup issue in brmulticastqueryexpired. When setting multicastqueryinterval to a large value, the local variable time in brmulticastsendquery may overflow. If the time is less than a few milliseconds, t...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: afunix: Fixed a data race in unixdgrampeerwakeme. unixdgrampoll calls unixdgrampeerwakeme without ensuring that the other lock is held, and without checking whether its receive queue is full. In this case, we need to use...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Nilfs2: Rejects invalid file types when reading inodes. To prevent inodes with invalid file types from causing malfunctions or assertion failures, a missing sanity check should be added when reading an inode from a block device. ...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs/jfs: Added validation for dbmaxag and dbagpref. Both dbmaxag and dbagpref are used as indexes for the dbagfree array. However, there is currently no validation for these values, which can lead to errors. The following is a...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cppccpufreq: Fixed a possible null pointer dereferencing issue. The functions cppccpufreqgetrate and hiicppccpufreqgetrate can be called from different locations with various parameters. Therefore, cpufreqcpuget may return null a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ASoC: SOF: ipc3-control: Fixed a heap overflow in bytesext put/get The ipccontroldata buffer is allocated using kzallocmaxsize, where maxsize covers the entire struct sofipcctrldata, including its flexible array payload...