CVE Vulnerability Catalog

In the Linux kernel, a vulnerability in the HSR (High-availability Seamless Redundancy) module allows out-of-bounds (OOB) access during supervision frame handling. The issue is due to insufficient length checking of the TLV header before use.

In the Linux kernel, a vulnerability was found in iptunnel_pmtud_build_icmp() and iptunnel_pmtud_build_icmpv6() functions, where network header pointers (ip_hdr, ipv6_hdr) were cached before a skb_cow() call that can reallocate skb->head. This can lead to a use-after-free (UAF) condition.

In the Linux kernel VXLAN driver, a vulnerability was found where a cached ip_hdr() pointer is reused after calling skb_tunnel_check_pmtu(), which can change skb->head. This leads to a Use-After-Free condition that can be exploited to compromise system security.

A vulnerability was found in the Linux kernel's iptunnel_pmtud_check_icmp() function, which can be called when the transport header in the socket buffer (skb) is not set. This causes an out-of-bounds memory access because the default value (65535) is used as an offset. The fix accesses the ICMP header based on the IPv4 network header.

A vulnerability was found in the Linux kernel's ipv6_rpl_srh_decompress() function for the IPv6 RPL protocol. The hdrlen calculation can overflow an unsigned 8-bit integer, leading to buffer overwrite and potential corruption of the routing header.

In the Linux kernel, a vulnerability in the net/handshake mechanism allows a race condition where handshake_req_next() removes a request before the accept side reads the socket file. A concurrent consumer can cancel the request and free the socket structure, leading to NULL pointer dereference or use-after-free.

A vulnerability was found in the Linux kernel's handshake networking mechanism. During net namespace exit, the list of pending handshake requests is not properly drained due to reversed arguments in list_splice_init(). Additionally, a race condition between the drain process and request cancellation can cause list corruption and memory leaks.

A vulnerability in the Linux kernel's KVM SEV implementation has been fixed, where Port I/O requests with a length of '0' were not properly ignored. This could cause an underflow when configuring the scratch area, potentially leading to incorrect behavior or system crashes.

In the Linux kernel KVM SEV module, a vulnerability was found due to incorrect calculation of the maximum scratch area length in GHCB. This bug can cause a buffer overflow when processing PSC requests if the minimum length is passed instead of the full size.

A vulnerability was found in the Linux kernel's KVM component for AMD SEV. When processing Page State Change (PSC) requests, the PSC buffer indices were not validated against the actual scratch area size, potentially leading to an out-of-bounds read.

In the Linux kernel, a vulnerability was found in IPv6 extension header handling. The ipv6_hop_jumbo() function can alter skb pointers, requiring the nh pointer to be recomputed to prevent errors.

In the Linux kernel, a vulnerability was found in ip6_parse_tlv() for IPv6, where the cached nh pointer may be invalidated by pskb_expand_head() in ipv6_dest_hao(). After handling the HAO option, the pointer is not refreshed, causing parsing of stale header data.

In the Linux kernel's ESP (Encapsulating Security Payload) IPsec subsystem, a vulnerability was found in the fast path packet processing due to incorrect fragment length checking. When the combined aligned length exceeds a page size, the destination buffer may be allocated as a single page while the scatter-gather list expects a larger area, leading to a potential buffer overflow.

Two vulnerabilities were found in the Linux kernel's iscsi-target module: a CRC buffer overread (4 bytes beyond allocated memory) and a double-free in iscsit_handle_text_cmd(). Both bugs have been present since the original LIO integration (commit e48354ce078c).

In the Linux kernel's SCSI target iSCSI subsystem, a heap buffer overflow vulnerability was found. The iscsi_encode_text_output() function fails to check remaining space in the 8 KB rsp_buf, allowing up to 32 KB of "NotUnderstood" responses for unknown keys, causing an approximately 24 KB overrun.

In the Linux kernel's iSCSI target subsystem, a buffer overflow vulnerability exists in chap_server_compute_hash() due to missing input length validation before BASE64 decoding. This allows writing beyond allocated memory, potentially leading to data corruption or code execution.

In the Linux kernel's Airoha network driver, a vulnerability was found where the transmit loop in airoha_dev_xmit() reads uninitialized fragment address and length during its final iteration. This occurs when the loop index equals skb_shinfo(skb)->nr_frags, leading to access of uninitialized memory and potential page fault. The fix avoids reading fragment data on the last iteration and moves the skb pointer to the last descriptor to defer freeing until final descriptor processing.

In the Linux kernel, a vulnerability in the sk_msg mechanism where the sg.copy bit is not properly synchronized during scatterlist transforms. This can expose file page-cache pages as writable by BPF, allowing modification of the original page cache.

In the Linux kernel, a vulnerability in the GCOV mechanism occurs when GCC optimization merges global branch counters with loop induction variables. Concurrent execution on multiple CPUs causes inconsistent counter values and out-of-bounds memory writes, manifesting as a page fault during IPComp processing.

In the Linux kernel, a use-after-free vulnerability was found in the exfat filesystem's exfat_find_dir_entry() function. A buffer_head is released before reading data from it in the TYPE_EXTEND branch, potentially leading to access of freed memory.