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

In the Linux kernel, the following vulnerability has been resolved: Team: Fix null-ptr-deref when the team device type is changed. The null-ptr-deref bug occurs as follows with a reproducer 1. Bug: Kernel NULL pointer dereferencing. Address: 0000000000000228… … RIP:...

Astra Linux – Vulnerability in Firefox

Due to unexpected data type conversions, a use-after-free might have occurred when interacting with the font cache. We assume that with sufficient effort, this vulnerability could have been exploited to execute arbitrary code. This vulnerability affects Firefox versions earlier than 88...

Astra Linux – Vulnerability in Firefox and Thunderbird

Keyboard events reference strings like “KeyA” that are located at fixed, known, and widely-distributed addresses. Cache-based timing attacks, such as Prime+Probe, could potentially determine which keys were pressed. This vulnerability affects Firefox ESR 102.5, Thunderbird 102.5, and Firefox 107...

Astra Linux – Vulnerability in unbound

NLnet Labs Unbound, including version 1.16.1, is vulnerable to a new type of “ghost domain name” attack. The vulnerability operates by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain,...

Astra Linux – Vulnerability in bind9

Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through...

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: - In the net subsystem, do not delay the execution of dstentriesadd within dstrelease. - dstentriesadd uses data per-core that might be freed during the dismantling of ip6routenetexit, by calling dstentriesdestroy. Before...

Astra Linux – Vulnerability in sssd

A flaw was discovered in SSSD, where the sssctl command was vulnerable to shell command injection through the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into executing a specially crafted sssctl command, such as using sudo, in order to gain root...

Astra Linux – Vulnerability in Waitress

In Waitress version 1.4.0, if a proxy server is used in front of Waitress, an attacker may send an invalid request that bypasses the front-end and is parsed differently by Waitress. This could lead to HTTP request smuggling. Specifically, requests containing special whitespace characters in the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: Client: Fixed the smbdirectrecvio leak in the smbdnegotiate error path. During tests of another unrelated patch, I was able to trigger this error: Objects remaining on kmemcacheshutdown...

Astra Linux – Vulnerability in Squid

Squid is a caching proxy for the Web. Due to a bug related to expired pointer references, Squid versions prior to 6.6 were vulnerable to a Denial of Service attack targeting error responses from the Cache Manager. This vulnerability allowed a trusted client to cause a Denial of Service attack by...

Astra Linux – Vulnerability in Squid

A issue was discovered in Squid 4.9 through 4.17 and 5.0.6 through 5.6. Due to inconsistent handling of internal URIs, sensitive information about clients using the proxy may be exposed through an HTTPS request to an internal cache manager URL. This issue has been fixed in version 5.7...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba. The Samba smbd file server must map Windows group identities SIDs to Unix group IDs gids. The code responsible for this mapping contained a flaw that could allow it to read data beyond the end of the array, in the event that a negative cache entry was added to 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: ACPICA: fixed the ACPI operand cache leak in dswstate.c ACPICA commit: 987a3b5cf7175916e2a4b6ea5b8e70f830dfe732 I discovered a ACPI cache leak in cases where ACPI early termination occurs and the boot process continues. When earl...

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: dm Cache: Prevent BUGON by blocking retries when the cache device fails to resume due to mapping errors. A cache device that fails to resume due to mapping errors should not be retried, as this will leave a partially initialized...

Astra Linux – Vulnerability in cups

OpenPrinting CUPS is an open-source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and earlier, the RSS notifier allowed path traversal in notify-recipient-uri e.g., rss:///../job.cache, enabling a remote IPP client to write RSS XML bytes outside of CacheDir/r...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ubifs: A fix was made to increment the reference count of a page once it is set as private. The MM structure defines a rule 1 very clearly: once a page is marked with the PGprivate flag, the reference count of that page should be...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: Fields related to NAT expectations are set to zero when CTAEXPECTNAT is not present. The ctnetlinkallocexpect function allocates expectations from a non-zeroing slab cache via nfctexpectalloc. When...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: md/raid5-cache: fixed a deadlock in r5lexitlog. The commit b13015af94cf “md/raid5-cache: Clear conf-log after finishing work” introduced a new problem: // The caller holds reconfigmutex r5lexitlog flushwork&log-disablewritebackwo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Cache streams targeting the link when performing LT automation. REASON The last LT automation update may cause a crash by referencing currentstate and calling dcupdateplanesandstream, which might corrupt...

Astra Linux – Vulnerability in dovecot

Dovecot OTP authentication is vulnerable to replay attacks under certain conditions. If the auth cache is enabled, and the username is changed in passdb, then the OTP credentials can be cached, making the same OTP response valid. An attacker who can observe the OTP exchange can log in as the user...