#dos

A reflected cross-site scripting (XSS) vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be vulnerable. This may compromise user details, allowing it to be changed or collected by an attacker.

### Summary snappy-java is a data compression library in Java. Its SnappyInputStream was found to be vulnerable to Denial of Service (DoS) attacks when decompressing data with a too-large chunk size. Due to missing upper bound check on chunk length, an unrecoverable fatal error can occur. ### Scope All versions of snappy-java including the latest released version 1.1.10.3. A fix is applied in 1.1.10.4 ### Details While performing mitigation efforts related to [CVE-2023-34455](https://nvd.nist.gov/vuln/detail/CVE-2023-34455) in Confluent products, our Application Security team closely analyzed the fix that was accepted and merged into snappy-java version 1.1.10.1 in [this](https://github.com/xerial/snappy-java/commit/3bf67857fcf70d9eea56eed4af7c925671e8eaea) commit. The check on [line 421](https://github.com/xerial/snappy-java/commit/3bf67857fcf70d9eea56eed4af7c925671e8eaea#diff-c3e53610267092989965e8c7dd2d4417d355ff7f560f9e8075b365f32569079fR421) only attempts to check if chunkSi...

A flaw was found in vringh_kiov_advance in drivers/vhost/vringh.c in the host side of a virtio ring in the Linux Kernel. This issue may result in a denial of service from guest to host via zero length descriptor.

Debian Linux Security Advisory 5504-1 - Several vulnerabilities were discovered in BIND, a DNS server implementation.

Ubuntu Security Notice 6190-2 - USN-6190-1 fixed a vulnerability in AccountsService. This update provides the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Kevin Backhouse discovered that AccountsService incorrectly handled certain D-Bus messages. A local attacker could use this issue to cause AccountsService to crash, resulting in a denial of service, or possibly execute arbitrary code.

By Waqas Kaspersky Unveils Alarming IoT Vulnerabilities and Dark Web's Thriving DDoS Economy. This is a post from HackRead.com Read the original post: Kaspersky Reveals Alarming IoT Threats and Dark Web DDoS Boom

### Summary Parsing malformed markdown input with parser that uses parser.Mmark extension could result in out-of-bounds read vulnerability. ### Details To exploit the vulnerability, parser needs to have parser.Mmark extension set. The panic occurs inside the `citation.go` file on the line 69 when the parser tries to access the element past its length. https://github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c41e4/parser/citation.go#L69 ### PoC ```go package main import ( "github.com/gomarkdown/markdown" "github.com/gomarkdown/markdown/parser" ) func main() { ext := parser.CommonExtensions | parser.Attributes | parser.OrderedListStart | parser.SuperSubscript | parser.Mmark p := parser.NewWithExtensions(ext) inp := []byte("[@]") markdown.ToHTML(inp, p, nil) } ``` ```bash $ go run main.go panic: runtime error: index out of range [1] with length 1 goroutine 1 [running]: github.com/gomarkdown/markdown/parser.citation(0x10?, {0x1400000e3f0, 0x14000...

The package `github.com/gomarkdown/markdown` is a Go library for parsing Markdown text and rendering as HTML. Prior to pseudoversion `0.0.0-20230922105210-14b16010c2ee`, which corresponds with commit `14b16010c2ee7ff33a940a541d993bd043a88940`, parsing malformed markdown input with parser that uses parser.Mmark extension could result in out-of-bounds read vulnerability. To exploit the vulnerability, parser needs to have `parser.Mmark` extension set. The panic occurs inside the `citation.go` file on the line 69 when the parser tries to access the element past its length. This can result in a denial of service. Commit `14b16010c2ee7ff33a940a541d993bd043a88940`/pseudoversion `0.0.0-20230922105210-14b16010c2ee` contains a patch for this issue.

Ubuntu Security Notice 6360-2 - USN-6360-1 fixed a vulnerability in FLAC. This update provides the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. It was discovered that FLAC incorrectly handled encoding certain files. A remote attacker could use this issue to cause FLAC to crash, resulting in a denial of service, or possibly execute arbitrary code.

A flaw was found in Red Hat Single Sign-On for OpenShift container images, which are configured with an unsecured management interface enabled. This flaw allows an attacker to use this interface to deploy malicious code and access and modify potentially sensitive information in the app server configuration.