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CVE-2018-16863

ghostscript: incomplete fix for CVE-2018-16509

It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypass the -dSAFER protection to, for example, execute arbitrary shell commands via a specially crafted PostScript document. This only affects ghostscript 9.07 as shipped with Red Hat Enterprise Linux 7.

CVSS 3.0 · 7.3 High EPSS 1.2% KEV · Not listed
Vendors
CVE-2018-16802

ghostscript: Incorrect "restoration of privilege" checking when running out of stack during exception handling

An issue was discovered in Artifex Ghostscript before 9.25. Incorrect "restoration of privilege" checking when running out of stack during exception handling could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction. This is due to an incomplete fix for CVE-2018-16509.

CVSS 3.0 · 7.8 High EPSS 2.1% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
CVE-2018-16541

ghostscript: Incorrect free logic in pagedevice replacement (699664)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files could use incorrect free logic in pagedevice replacement to crash the interpreter.

CVSS 3.0 · 5.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
CVE-2018-16540

ghostscript: use-after-free in copydevice handling (699661)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files to the builtin PDF14 converter could use a use-after-free in copydevice handling to crash the interpreter or possibly have unspecified other impact.

CVSS 3.0 · 7.8 High EPSS 1.6% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
CVE-2018-16539

ghostscript: incorrect access checking in temp file handling to disclose contents of files (699658)

In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files could use incorrect access checking in temp file handling to disclose contents of files on the system otherwise not readable.

CVSS 3.0 · 5.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
CVE-2018-16511

ghostscript: missing type check in type checker (699659)

An issue was discovered in Artifex Ghostscript before 9.24. A type confusion in "ztype" could be used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact.

CVSS 3.0 · 7.8 High EPSS 1.9% KEV · Not listed
Vendors
Artifex Canonical Debian and 1 more
Products
CVE-2018-15911

ghostscript: Uninitialized memory access in the aesdecode operator (699665)

In Artifex Ghostscript 9.23 before 2018-08-24, attackers able to supply crafted PostScript could use uninitialized memory access in the aesdecode operator to crash the interpreter or potentially execute code.

CVSS 3.0 · 7.8 High EPSS 3.0% KEV · Not listed
Vendors
Artifex Canonical Debian and 2 more
CVE-2018-15909

ghostscript: shading_param incomplete type checking (699660)

In Artifex Ghostscript 9.23 before 2018-08-24, a type confusion using the .shfill operator could be used by attackers able to supply crafted PostScript files to crash the interpreter or potentially execute code.

CVSS 3.0 · 7.8 High EPSS 3.0% KEV · Not listed
Vendors
Artifex Canonical Debian and 2 more
CVE-2018-15127

libvncserver: Heap out-of-bounds write in rfbserver.c in rfbProcessFileTransferReadBuffer() allows for potential code execution

LibVNC before commit 502821828ed00b4a2c4bef90683d0fd88ce495de contains heap out-of-bound write vulnerability in server code of file transfer extension that can result remote code execution

CVSS 3.0 · 9.8 Critical EPSS 15.1% KEV · Not listed
Vendors
Products
CVE-2018-14646

kernel: NULL pointer dereference in af_netlink.c:__netlink_ns_capable() allows for denial of service

The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2018-14638

389-ds-base: Crash in delete_passwdPolicy when persistent search connections are terminated unexpectedly

A flaw was found in 389-ds-base before version 1.3.8.4-13. The process ns-slapd crashes in delete_passwdPolicy function when persistent search connections are terminated unexpectedly leading to remote denial of service.

CVSS 3.0 · 7.5 High EPSS 2.6% KEV · Not listed
CVE-2018-14633

kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target

A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable.

CVSS 3.1 · 7.0 High EPSS 8.7% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
CVE-2018-14624

389-ds-base: Server crash through modify command with large DN

A vulnerability was discovered in 389-ds-base through versions 1.3.7.10, 1.3.8.8 and 1.4.0.16. The lock controlling the error log was not correctly used when re-opening the log file in log__error_emergency(). An attacker could send a flood of modifications to a very large DN, which would cause slapd to crash.

CVSS 3.0 · 7.5 High EPSS 2.4% KEV · Not listed
CVE-2018-14362

mutt: POP body caching path traversal vulnerability

An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. pop.c does not forbid characters that may have unsafe interaction with message-cache pathnames, as demonstrated by a '/' character.

CVSS 3.1 · 9.8 Critical EPSS 3.7% KEV · Not listed
Vendors
Canonical Debian Mutt and 2 more
Products
CVE-2018-14357

mutt: Remote Code Execution via backquote characters

An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. They allow remote IMAP servers to execute arbitrary commands via backquote characters, related to the mailboxes command associated with an automatic subscription.

CVSS 3.1 · 9.8 Critical EPSS 5.0% KEV · Not listed
Vendors
Canonical Debian Mutt and 2 more
Products
CVE-2018-14354

mutt: Remote code injection vulnerability to an IMAP mailbox

An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. They allow remote IMAP servers to execute arbitrary commands via backquote characters, related to the mailboxes command associated with a manual subscription or unsubscription.

CVSS 3.1 · 9.8 Critical EPSS 6.2% KEV · Not listed
Vendors
Canonical Debian Mutt and 2 more
Products
CVE-2018-13405

kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.

CVSS 3.1 · 7.8 High EPSS 1.0% KEV · Not listed
Vendors
Canonical Debian F5 and 3 more
CVE-2018-12396

Mozilla: WebExtension content scripts can execute in disallowed contexts

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

CVSS 3.0 · 6.5 Medium EPSS 2.3% KEV · Not listed
Vendors
Canonical Debian Mozilla and 1 more
Products
CVE-2018-12393

Mozilla: Integer overflow during Unicode conversion while loading JavaScript

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

CVSS 3.0 · 7.5 High EPSS 3.9% KEV · Not listed
Vendors
Canonical Debian Mozilla and 1 more
Products
CVE-2018-12385

Mozilla: Crash in TransportSecurityInfo due to cached data

A potentially exploitable crash in TransportSecurityInfo used for SSL can be triggered by data stored in the local cache in the user profile directory. This issue is only exploitable in combination with another vulnerability allowing an attacker to write data into the local cache or from locally installed malware. This issue also triggers a non-exploitable startup crash for users switching between the Nightly and Release versions of Firefox if the same profile is used. This vulnerability affects Thunderbird < 60.2.1, Firefox ESR < 60.2.1, and Firefox < 62.0.2.

CVSS 3.0 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Mozilla and 1 more
Products