Red Hat Enterprise Linux 9 vulnerabilities
1,050 known vulnerabilities in Red Hat Enterprise Linux 9 from Red Hat. 1,050 are rated high or critical, and 6 have been exploited in real attacks. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.
Latest first
- 7.4 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Write
A heap-based buffer overflow was found in the DHCPv6 and TFTP response builders of libslirp. When the host is configured with a small interface MTU, a guest-supplied DHCPv6 CLIENTID option or TFTP blksize option can overflow the reply buffer with attacker-cont
- 8.1 High severity
Red Hat Enterprise Linux 10: Incorrect Authorization
A flaw was found in pki-core. The v2 REST ACL filter selects a tie-breaking permission for colliding literal and wildcard ACL keys using lexicographic string comparison rather than specificity, causing a wildcard-mapped permission to override a more specific l
- 8.8 High severity
Confidential Compute Attestation: Execution with Unnecessary Privileges
A vulnerability in CRI-O checkpoint restore allows a user who can create a pod from a malicious checkpointed container to bypass the destination Kubernetes security context. The restored process may retain credentials, Linux capabilities, no_new_privs, and sec
- 7.5 High severity
Red Hat Enterprise Linux 10: Allocation of Resources Without Limits or Throttling
A flaw was found in Cockpit. An unauthenticated remote attacker can exploit this vulnerability by initiating and sustaining numerous simultaneous connections to the `cockpit-tls` service. This forces the service to create an unbounded number of detached thread
- 8.2 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Write
A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset
- 7.5 High severity
Red Hat Build of Apache Camel 3.33.4.redhat: Improper Handling of Highly Compressed Data (Data Amplification)
A flaw was found in RESTEasy's IIOImageProvider, which decodes attacker-supplied image request bodies without enforcing any limit on the declared image dimensions or pixel count. A remote, unauthenticated attacker can send a small crafted image declaring enorm
- 7.4 High severity
Red Hat Build of Apache Camel 3.33.4.redhat: Origin Validation Error
A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-orig
- 7.1 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Read
A flaw was found in Redis community. The cluster bus packet parser, responsible for handling PING, PONG, and MEET packets, fails to properly validate string-carrying extensions for null-termination. This oversight allows a remote attacker to craft a malicious
- 7.8 High severity
Red Hat Enterprise Linux 10: Improper Control of Generation of Code
A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the bu
- 7.4 High severity
Red Hat Ansible Automation Platform 2.6 for…: Improper Verification of Cryptographic Signature
A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the ba
- 7.8 High severity
GIMP: Integer Overflow or Wraparound
A flaw was found in the file-psd plugin in GIMP. When generating a thumbnail preview for a specially crafted PSD (Photoshop Document) image file, an integer overflow occurs during the multiplication of values from an embedded JPEG header. This leads to an unde
- 7.5 High severity
Red Hat Enterprise Linux 10: Out-of-bounds Read
A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the `genmatchstring()` function. This leads to out-of-bounds read/write
- 7.3 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in environment-modules. A local attacker can exploit this vulnerability by placing a maliciously named modulefile in a location visible to the victim's `MODULEPATH`. When the victim uses Bash completion for `module` or `ml` commands, the malic
- 7.3 High severity
Red Hat Enterprise Linux 9: Execution with Unnecessary Privileges
A privilege escalation flaw was found in the scan_mysql actor of leapp-upgrade-el9toel10 (provided by leapp-repository). During RHEL 9 to RHEL 10 upgrades, the actor runs: mysqld --validate-config --log-error-verbosity=2 directly as root in the Leapp actor con
- 7.1 High severity
Fedora: Incorrect Authorization
A flaw was found in PackageKit. PackageKit skips the polkit authorization check for transactions carrying the SIMULATE (dry-run) flag. In the dnf5 backend, the RepoRemove handler ignores that contract and always executes the real transaction because its guard
- 7.8 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Write
A flaw was found in GIMP. When processing a specially crafted lighting preset file, the Lighting Effects filter does not properly validate the number of light sources. This can lead to an out-of-bounds write, corrupting memory. An attacker could exploit this b
- 7.8 High severity
Red Hat Enterprise Linux 6: Out-of-bounds Write
A flaw was found in GIMP's PSP (Paint Shop Pro) file loader. When processing a compressed selection channel, a heap-based buffer overflow can occur due to a mismatch between the allocated buffer size and the amount of data decompressed. A remote attacker could
- 7.8 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Write
A flaw was found in GIMP's ICO file loader. When processing an ICO file containing an embedded PNG image, an integer overflow can occur during the calculation of the required buffer size. This leads to an undersized buffer being allocated, causing a heap-based
- 7.0 High severity
gvfs: Time-of-check Time-of-use (TOCTOU) Race Condition
A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newly created private D-Bus sockets by calling the link-following chown() function on a pathname inside a user-controlled directory. A local attacker can
- 7.8 High severity
Red Hat Enterprise Linux 10: Improper Privilege Management
A flaw was found in crun. When crun is built with libkrun and a container is started rootful with passt networking (krun.use_passt), crun can execute attacker-controlled payload from the container image with host root privileges. The issue is a regression in c
- 7.5 High severity
Red Hat Enterprise Linux 10: Partial String Comparison
A flaw was found in SSSD's IdP authentication provider. The eval_access_token_buf() function compares the OIDC subject identifier using strncmp() with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An atta
- 8.1 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Input During Web Page Generation
A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS) vulnerability in the FreeIPA/IdM Web UI password reset page. By enticing a victim to click a specially crafted link and complete a password reset, th
- 8.8 High severity
Red Hat Enterprise Linux 10: Improper Link Resolution Before File Access
A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sand
- 8.5 High severity
Red Hat Enterprise Linux 10: Release of Invalid Pointer or Reference
A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free
- 7.2 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in Dogtag PKI, as used by FreeIPA's certificate authority component. The certificate profile import functionality does not fully validate uploaded profile content beyond the profile ID. An authenticated user with CA Administrator privileges ca
- 8.4 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in 389-ds-base. The Cockpit 389 Console's LDAP editor constructs an ldapsearch command by embedding an LDAP entry's distinguished name (DN) into a shell command string without proper escaping. An LDAP user with delegated privileges to create o
- 9.8 Critical severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Improper Authentication
A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardl
- 7.5 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: NULL Pointer Dereference
A flaw was found in 389 Directory Server. A missing NULL pointer check in the paged results handling of op_shared_search allows an unauthenticated remote attacker to crash the LDAP server by sending a crafted sequence of search requests using the USE_ONE_BACKE
- 7.5 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Integer Underflow (Wrap or Wraparound)
A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), the wrapped-record length read from the wire is validated only against an upper bound. A small wire length (0, 1, or 2) produces an en
- 7.5 High severity
Red Hat Directory Server 11.5 E4S for RHEL 8: Incorrect Authorization
A flaw was found in 389 Directory Server. The SELFDN ACI bind-rule evaluator incorrectly matches an anonymous LDAP client's empty bind DN against an empty stored attribute value, allowing an unauthenticated client to satisfy access control checks intended to r
- 8.1 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Directives in Dynamically Evaluated Code
A flaw was found in FreeIPA's idp-add command, where insufficiently validated --organization/--base-url input reaches a constrained eval() call before the corresponding LDAP access control check is enforced. This allows any authenticated IPA principal, regardl
- 9.8 Critical severity
Red Hat Enterprise Linux 10: Missing Authentication for Critical Functionality
A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the unde
- 7.5 High severity
Red Hat Enterprise Linux 10: Heap-based Buffer Overflow
A heap-based buffer overflow was found in Corosync's Totem Process Group (totempg) message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent att
- 7.6 High severity
Red Hat Enterprise Linux 10: Use After Free
A flaw was found in libsoup. A malicious HTTP/2 server or a Man-in-the-Middle (MITM) attacker can exploit a heap use-after-free vulnerability in the HTTP/2 client implementation. This occurs when a GNOME application uploads a file using HTTP/2, and the server
- 7.5 High severity
Red Hat Enterprise Linux 10: NULL Pointer Dereference
A NULL pointer dereference flaw was found in GStreamer's RTSP support library. The vulnerability occurs while parsing an Authorization or WWW-Authenticate header that uses Digest authentication. Specially crafted whitespace placement around a parameter's termi
- 7.0 High severity
Red Hat Enterprise Linux 7: Out-of-bounds Write
A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when process
- 7.0 High severity
Red Hat Enterprise Linux 7: Out-of-bounds Write
A stack out-of-bounds write vulnerability was found in gfs2-utils. In gfs2_edit, the di_height field from on-disk inode metadata is used as an array index without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when p
- 7.8 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in rpmuncompress. This command injection vulnerability allows a local attacker to execute arbitrary commands. This occurs when rpmuncompress processes a specially crafted archive filename containing shell metacharacters, which are not properly
- 7.8 High severity
Red Hat Enterprise Linux 10: Improper Neutralization of Special Elements used in an OS Command
A flaw was found in rpm. An attacker can exploit a command injection vulnerability by influencing the path or filename of a tarball processed by `rpmbuild -t*` to include shell metacharacters. This is particularly relevant in automated build or continuous inte
- 7.8 High severity
Red Hat Enterprise Linux 10: Time-of-check Time-of-use (TOCTOU) Race Condition
A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to