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

In the Linux kernel, the following vulnerability has been resolved: liquidio: The handling of NULL pointers in liovfrepcopypacket was adjusted. In liovfrepcopypacket, pginfo-page is compared to a NULL value, but it is then unconditionally passed to skbaddrxfrag, which seems strange and could lead...

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

In the Linux kernel, the following vulnerability has been resolved: ppp: Rejects packets that are claimed to be LCP packets but are actually malformed packets. Since pppasyncencode assumes that the packets are valid LCP packets with codes from 1 to 7 inclusive, add pppcheckpacket to ensure that t...

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

In the Linux kernel, the following vulnerabilities have been resolved: Wifi: For the cfg80211 driver, the value of NL80211ATTRTXQQUANTUM was restricted. syzbot is capable of triggering soft lockups by setting NL80211ATTRTXQQUANTUM to 2^31. We had a similar issue in the schfq driver, which was fix...

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

In the Linux kernel, the following vulnerability has been resolved: net: added more sanity checks to qdiscpktleninit. One of the approaches handles SKBGSODODGY, assuming that skb-len is greater than hdrlen. The function virtionethdrtoskb does not fully dissect TCP headers; it only ensures that th...

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: - net: hsr: Avoid potential out-of-bound access in fillframeinfo. syzbot can inject a packet with 14 bytes, pretending it is a VLAN packet. Since fillframeinfo already relies on skb-maclen, extend the check to cover this case....

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: netsched: schsfq: do not allow a 1 packet limit The current implementation does not work correctly with a limit of 1 packet. iproute2 actually checks for this, and this patch adds this check as well in the kernel. This fix resolv...

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

In the Linux kernel, the following vulnerability has been resolved: bpf: Send signals asynchronously if !preemptible BPF programs can execute in various contexts. When a program running in a non-preemptible context uses the bpfsendsignal function, issues may arise because this function can enter ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: A “off-by-one” error occurred in buildprologue. Vincent reported that running BPF programs with tail calls on LoongArch causes a kernel hard lockup. Debugging these issues revealed that the JIT-compiled code misse...

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: arm64: bpf: Added BHB mitigation to the epilogue for cBPF programs. A malicious BPF program may manipulate the branch history to influence what the hardware speculates will happen next. Upon exiting a cBPF program, the BHB...

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: netsched: schsfq: Fixed a potential crash during handling of gsoskb. SFQ assumes that it is always able to queue at least one packet. However, after the committed change, sch-q.len can be inflated by packets in sch-gsoskb. An...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed the KASAN use-after-free Read issue in computeeffectiveprogs. Syzbot identified a use-after-free bug in computeeffectiveprogs. The reproducer creates a number of BPF links, causing a failure in the injected allocation...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: bpf: Do not redirect packets with invalid pktlen Syzbot identified an issue 1: the fqcodel Drop function attempts to drop a flow without any SKBs, that is, when flow-head is null. The root cause, as stated in 2, is that the...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: etases58x: It is necessary to populate ndochangemtu to prevent buffer overflows. Sending a PFPACKET allows bypassing the CAN framework logic and directly reaching the xmit function of a CAN driver. The only check performed by the...

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: bpf: Reject unhashed sockets in bpfskassign The semantics for bpfskassign are as follows: c sk = somelookupfunc bpfskassignskb, sk bpfskreleasesk That is, the sk is not consumed by bpfskassign. Therefore, the function must ensure...

Astra Linux – Vulnerability in Linux

The 802.11 standard that underpins Wi-Fi Protected Access WPA, WPA2, and WPA3 and Wired Equivalent Privacy WEP does not require that received fragments be cleared from memory after reconnecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted usin...

Astra Linux – Vulnerability in OpenLDAP

A flaw was discovered in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed by OpenLDAP’s slapd server, thereby triggering an assertion failure. The greatest threat of this vulnerability is to system availability...

Astra Linux – Vulnerability in Wireshark

In Wireshark versions 3.2.0 to 3.2.1, 3.0.0 to 3.0.8, and 2.6.0 to 2.6.14, the LTE RRC dissector could leak memory. This issue was addressed in the epan/dissectors/packet-lte-rrc.c file by adjusting certain append operations...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftct: Skip the evaluation of rules for confirmed conntrack entries. The nftctexpectobjeval function calls nfctextadd for confirmed conntrack entries. However, nfctextadd can only be called when !nfctisconfirmed is...

Astra Linux – Vulnerability in libpcap

The sf-pcapng.c file in libpcap before version 1.9.1 does not properly validate the PHB header length before allocating memory...

Astra Linux – Vulnerability in Wireshark

A crash in the DNP dissector in Wireshark versions 3.4.0 to 3.4.6, as well as 3.2.0 to 3.2.14, allows for denial of service through packet injection or malicious capture files...