CVE-2018-10902
It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd
CVSS
7.8
High
EPSS
0.5%
p41
KEV
—
Exploit Today
12
0-100
Published: Aug 21, 2018 · Last modified: Jul 7, 2026 · CWE-416 · CWE-415
0.5%EPSS · 30 days0.5%
2026-06-302026-07-16
It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.
- www.securityfocus.comhttp://www.securityfocus.com/bid/105119
- www.securitytracker.comhttp://www.securitytracker.com/id/1041529
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2018:3083
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2018:3096
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2019:0415
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2019:0641
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2019:3217
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2019:3967
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10902
- git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39675f7a7c7e7702f7d5341f1e0d01db746543a0
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
- usn.ubuntu.comhttps://usn.ubuntu.com/3776-1/
- usn.ubuntu.comhttps://usn.ubuntu.com/3776-2/
- usn.ubuntu.comhttps://usn.ubuntu.com/3847-1/
- usn.ubuntu.comhttps://usn.ubuntu.com/3847-2/
- usn.ubuntu.comhttps://usn.ubuntu.com/3847-3/
- usn.ubuntu.comhttps://usn.ubuntu.com/3849-1/
- usn.ubuntu.comhttps://usn.ubuntu.com/3849-2/
- www.debian.orghttps://www.debian.org/security/2018/dsa-4308
- www.securityfocus.comhttp://www.securityfocus.com/bid/105119
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-239188.8 HIG98.7%
——30Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol.
This issue affects Apache HTTP Server: 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.2dCVE-2025-217607.8 HIG94.7%
——28In the Linux kernel, the following vulnerability has been resolved:
ndisc: extend RCU protection in ndisc_send_skb()
ndisc_send_skb() can be called without RTNL or RCU held.
Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu()
and avoid a potential UAF.2dCVE-2026-335267.5 HIG94.7%
——28Squid is a caching proxy for the Web. Prior to version 7.5, due to heap Use-After-Free, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch.2dCVE-2026-327487.5 HIG94.7%
——28Squid is a caching proxy for the Web. Prior to version 7.5, due to premature release of resource during expected lifetime and heap Use-After-Free bugs, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. This bug is fixed in Squid version 7.5.2dCVE-2026-425308.1 HIG86.8%
——26NGINX Open Source has a vulnerability in the ngx_http_v3_module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This may cause a Use-after-Free in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.11hCVE-2026-454478.8 HIG84.4%
——25Issue summary: A specially crafted PKCS#7 or S/MIME signed message could
trigger a use-after-free during PKCS#7 signature verification.
Impact summary: A use-after-free may result in process crashes, heap
corruption, or potentially remote code execution.
When processing a PKCS#7 or S/MIME signed message, if the SignedData
digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may
incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent
use of the BIO by the calling application results in a use-after-free
condition.
In the common case this occurs when the application later calls
BIO_free() on the BIO originally passed to PKCS7_verify(). Depending
on allocator behavior and application-specific BIO usage patterns, this
may result in a crash or other memory corruption. In some application
contexts this may potentially be exploitable for remote code execution.
Applications that process PKCS#7 or S/MIME signed messages using OpenSSL
PKCS#7 APIs may be affected. Applications using the CMS APIs for this
processing are not affected.
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this
issue, as the affected code is outside the OpenSSL FIPS module boundary.1d