| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
locking/qrwlock: Fix ordering in queued_write_lock_slowpath()
While this code is executed with the wait_lock held, a reader can
acquire the lock without holding wait_lock. The writer side loops
checking the value with the atomic_cond_read_acquire(), but only truly
acquires the lock when the compare-and-exchange is completed
successfully which isn’t ordered. This exposes the window between the
acquire and the cmpxchg to an A-B-A problem which allows reads
following the lock acquisition to observe values speculatively before
the write lock is truly acquired.
We've seen a problem in epoll where the reader does a xchg while
holding the read lock, but the writer can see a value change out from
under it.
Writer | Reader
--------------------------------------------------------------------------------
ep_scan_ready_list() |
|- write_lock_irq() |
|- queued_write_lock_slowpath() |
|- atomic_cond_read_acquire() |
| read_lock_irqsave(&ep->lock, flags);
--> (observes value before unlock) | chain_epi_lockless()
| | epi->next = xchg(&ep->ovflist, epi);
| | read_unlock_irqrestore(&ep->lock, flags);
| |
| atomic_cmpxchg_relaxed() |
|-- READ_ONCE(ep->ovflist); |
A core can order the read of the ovflist ahead of the
atomic_cmpxchg_relaxed(). Switching the cmpxchg to use acquire
semantics addresses this issue at which point the atomic_cond_read can
be switched to use relaxed semantics.
[peterz: use try_cmpxchg()] |
| Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability |
| Microsoft Edge (Chromium-based) Information Disclosure Vulnerability |
| Microsoft ODBC Driver Remote Code Execution Vulnerability |
| Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability |
| Secure Boot Security Feature Bypass Vulnerability |
| Secure Boot Security Feature Bypass Vulnerability |
| Secure Boot Security Feature Bypass Vulnerability |
| Secure Boot Security Feature Bypass Vulnerability |
| Secure Boot Security Feature Bypass Vulnerability |
| BitLocker Security Feature Bypass Vulnerability |
| Secure Boot Security Feature Bypass Vulnerability |
| Microsoft SharePoint Server Information Disclosure Vulnerability |
| Microsoft Bing Search Spoofing Vulnerability |
| Windows Mark of the Web Security Feature Bypass Vulnerability |
| In Apache Airflow versions prior to 2.4.2, there was an open redirect in the webserver's `/confirm` endpoint. |
| "IBM MQ Appliance 9.2 CD, 9.2 LTS, 9.3 CD, and LTS 9.3 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 235532." |
| Due to improper restrictions on XML entities multiple vulnerabilities exist in the command line interface of ArubaOS. A successful exploit could allow an authenticated attacker to retrieve files from the local system or cause the application to consume system resources, resulting in a denial of service condition.
|
| In vcu, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07203410; Issue ID: ALPS07203410. |
| The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.2 is susceptible to a URL parsing vulnerability. If a malicious Zoom meeting URL is opened, the malicious link may direct the user to connect to an arbitrary network address, leading to additional attacks including session takeovers. |
