Vulnerabilities (CVE)

Filtered by vendor Cloudflare Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-6992 1 Cloudflare 1 Zlib 2024-01-10 N/A 5.5 MEDIUM
Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow. A local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software. Patches: The issue has been patched in commit 8352d10 https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c . The upstream repository is not affected.
CVE-2023-7078 1 Cloudflare 1 Miniflare 2024-01-05 N/A 8.1 HIGH
Sending specially crafted HTTP requests to Miniflare's server could result in arbitrary HTTP and WebSocket requests being sent from the server. If Miniflare was configured to listen on external network interfaces (as was the default in wrangler until 3.19.0), an attacker on the local network could access other local servers.
CVE-2023-7079 1 Cloudflare 1 Wrangler 2024-01-05 N/A 5.7 MEDIUM
Sending specially crafted HTTP requests and inspector messages to Wrangler's dev server could result in any file on the user's computer being accessible over the local network. An attacker that could trick any user on the local network into opening a malicious website could also read any file.
CVE-2023-7080 1 Cloudflare 1 Wrangler 2024-01-05 N/A 8.0 HIGH
The V8 inspector intentionally allows arbitrary code execution within the Workers sandbox for debugging. wrangler dev would previously start an inspector server listening on all network interfaces. This would allow an attacker on the local network to connect to the inspector and run arbitrary code. Additionally, the inspector server did not validate Origin/Host headers, granting an attacker that can trick any user on the local network into opening a malicious website the ability to run code. If wrangler dev --remote was being used, an attacker could access production resources if they were bound to the worker. This issue was fixed in wrangler@3.19.0 and wrangler@2.20.2. Whilst wrangler dev's inspector server listens on local interfaces by default as of wrangler@3.16.0, an SSRF vulnerability in miniflare https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-fwvg-2739-22v7  (CVE-2023-7078) allowed access from the local network until wrangler@3.18.0. wrangler@3.19.0 and wrangler@2.20.2 introduced validation for the Origin/Host headers.
CVE-2023-6193 1 Cloudflare 1 Quiche 2023-12-14 N/A 5.3 MEDIUM
quiche v. 0.15.0 through 0.19.0 was discovered to be vulnerable to unbounded queuing of path validation messages, which could lead to excessive resource consumption. QUIC path validation (RFC 9000 Section 8.2) requires that the recipient of a PATH_CHALLENGE frame responds by sending a PATH_RESPONSE. An unauthenticated remote attacker can exploit the vulnerability by sending PATH_CHALLENGE frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that PATH_RESPONSE frames can only be sent at the slower rate than they are received; leading to storage of path validation data in an unbounded queue. Quiche versions greater than 0.19.0 address this problem.
CVE-2023-6180 1 Cloudflare 1 Boring 2023-12-12 N/A 5.3 MEDIUM
The tokio-boring library in version 4.0.0 is affected by a memory leak issue that can lead to excessive resource consumption and potential DoS by resource exhaustion. The set_ex_data function used by the library did not deallocate memory used by pre-existing data in memory each time after completing a TLS connection causing the program to consume more resources with each new connection.
CVE-2023-4241 1 Cloudflare 1 Lol-html 2023-08-22 N/A 7.5 HIGH
lol-html can cause panics on certain HTML inputs. Anyone processing arbitrary 3rd party HTML with the library is affected.
CVE-2023-3766 1 Cloudflare 1 Odoh-rs 2023-08-10 N/A 5.9 MEDIUM
A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients and enables an attacker with knowledge of this vulnerability to craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.
CVE-2023-2754 1 Cloudflare 1 Warp 2023-08-09 N/A 6.8 MEDIUM
The Cloudflare WARP client for Windows assigns loopback IPv4 addresses for the DNS Servers, since WARP acts as local DNS server that performs DNS queries in a secure manner, however, if a user is connected to WARP over an IPv6-capable network, te WARP client did not assign loopback IPv6 addresses but Unique Local Addresses, which under certain conditions could point towards unknown devices in the same local network which enables an Attacker to view DNS queries made by the device.
CVE-2023-3348 1 Cloudflare 1 Wrangler 2023-08-08 N/A 5.7 MEDIUM
The Wrangler command line tool (<=wrangler@3.1.0) was affected by a directory traversal vulnerability when running a local development server for Pages (wrangler pages dev command). This vulnerability enabled an attacker in the same network as the victim to connect to the local development server and access the victim's files present outside of the directory for the development server.
CVE-2022-2145 1 Cloudflare 1 Warp 2022-07-08 7.2 HIGH 7.8 HIGH
Cloudflare WARP client for Windows (up to v. 2022.5.309.0) allowed creation of mount points from its ProgramData folder. During installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files.
CVE-2022-2147 1 Cloudflare 1 Warp 2022-07-01 4.6 MEDIUM 7.8 HIGH
Cloudflare Warp for Windows from version 2022.2.95.0 contained an unquoted service path which enables arbitrary code execution leading to privilege escalation. The fix was released in version 2022.3.186.0.
CVE-2021-3907 2 Cloudflare, Debian 2 Octorpki, Debian Linux 2022-06-23 7.5 HIGH 9.8 CRITICAL
OctoRPKI does not escape a URI with a filename containing "..", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.
CVE-2021-3910 1 Cloudflare 1 Octorpki 2022-01-12 5.0 MEDIUM 7.5 HIGH
OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\0) character).
CVE-2021-3761 1 Cloudflare 1 Octorpki 2022-01-12 5.0 MEDIUM 7.5 HIGH
Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate. An attacker can use this to disable RPKI Origin Validation in a victim network (for example AS 13335 - Cloudflare) prior to launching a BGP hijack which during normal operations would be rejected as "RPKI invalid". Additionally, in certain deployments RTR session flapping in and of itself also could cause BGP routing churn, causing availability issues.
CVE-2021-3909 1 Cloudflare 1 Octorpki 2022-01-12 5.0 MEDIUM 7.5 HIGH
OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever. Specifically, the repository that OctoRPKI sends HTTP requests to will keep the connection open for a day before a response is returned, but does keep drip feeding new bytes to keep the connection alive.
CVE-2021-3911 1 Cloudflare 1 Octorpki 2022-01-12 4.3 MEDIUM 6.5 MEDIUM
If the ROA that a repository returns contains too many bits for the IP address then OctoRPKI will crash.
CVE-2021-3912 1 Cloudflare 1 Octorpki 2022-01-12 4.3 MEDIUM 6.5 MEDIUM
OctoRPKI tries to load the entire contents of a repository in memory, and in the case of a GZIP bomb, unzip it in memory, making it possible to create a repository that makes OctoRPKI run out of memory (and thus crash).
CVE-2021-3908 1 Cloudflare 1 Octorpki 2022-01-12 5.0 MEDIUM 7.5 HIGH
OctoRPKI does not limit the depth of a certificate chain, allowing for a CA to create children in an ad-hoc fashion, thereby making tree traversal never end.
CVE-2020-24356 1 Cloudflare 1 Cloudflared 2021-07-21 4.6 MEDIUM 7.8 HIGH
`cloudflared` versions prior to 2020.8.1 contain a local privilege escalation vulnerability on Windows systems. When run on a Windows system, `cloudflared` searches for configuration files which could be abused by a malicious entity to execute commands as a privileged user. Version 2020.8.1 fixes this issue.
CVE-2020-35152 1 Cloudflare 1 Warp 2021-02-05 4.6 MEDIUM 7.8 HIGH
Cloudflare WARP for Windows allows privilege escalation due to an unquoted service path. A malicious user or process running with non-administrative privileges can become an administrator by abusing the unquoted service path issue. Since version 1.2.2695.1, the vulnerability was fixed by adding quotes around the service's binary path. This issue affects Cloudflare WARP for Windows, versions prior to 1.2.2695.1.