Tobias Stoeckmann

**Name of the Vulnerable Software and Affected Versions** json-c versions 0.14 and earlier **Description** The issue is related to an integer overflow and out-of-bounds write in json-c, which can be triggered by a large JSON file. This can be demonstrated by the `printbuf memappend` function. The exploitation of this issue allows a remote attacker to access confidential data, compromise data integrity, and cause a denial of service. **Recommendations** For json-c versions 0.14 and earlier, consider updating to a version that fixes the integer overflow and out-of-bounds write issue. As a temporary workaround, consider restricting the size of JSON files that can be processed to prevent exploitation. Additionally, restrict access to sensitive data and implement measures to prevent denial of service attacks until a patch is available.

**Name of the Vulnerable Software and Affected Versions** libX11 versions prior to 1.6.5 **Description** The issue is related to the XListExtensions function in the ListExt.c file of the libX11 library, which provides the client-side API for the X Window System. It is associated with a buffer overflow due to interpreting a variable as signed instead of unsigned, resulting in an out-of-bounds write. This could allow a remote attacker to cause a denial of service or execute arbitrary code. **Recommendations** For libX11 versions prior to 1.6.5, update to version 1.6.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the XListExtensions function until a patch is available.

**Name of the Vulnerable Software and Affected Versions** libX11 versions through 1.6.5 **Description** The issue exists due to insufficient input validation in the XListExtensions function of the libX11 library. A malicious server can send a specially crafted reply, causing a variable to be set to NULL, which will be freed later, leading to a denial of service (segmentation fault). This can allow a remote attacker to cause a denial of service. **Recommendations** For libX11 versions through 1.6.5, consider restricting access to the XListExtensions function until a patch is available. As a temporary workaround, avoid using the vulnerable function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** libX11 versions 1.6.5 and earlier **Description** The issue is related to an off-by-one error in the `XListExtensions` function, caused by malicious server responses. This can lead to a denial of service (DoS) or possibly other unspecified impacts. The vulnerability can be exploited by a remote attacker using a specially crafted server response. **Recommendations** For libX11 versions 1.6.5 and earlier, consider disabling the `XListExtensions` function as a temporary workaround until a patch is available. Restrict access to the vulnerable `ListExt.c` component to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** libXcursor versions prior to 1.1.15 **Description** The issue is related to integer overflows in the libXcursor package, which could lead to heap buffer overflows when processing malicious cursors. This might allow a remote attacker to cause a denial of service. The vulnerability can be exploited through programs that handle cursors, such as GIMP. Additionally, there is a potential attack vector against the related code in cursor/xcursor.c in Wayland through version 1.14.0. **Recommendations** For libXcursor versions prior to 1.1.15, update to version 1.1.15 or later to resolve the issue. As a temporary workaround, consider restricting the use of malicious cursors to minimize the risk of exploitation.

**Name of the Vulnerable Software and Affected Versions** feh versions prior to 2.18.3 **Description** The issue arises from an integer overflow in the wallpaper.c file of feh, which can lead to a buffer overflow and/or a double free when receiving an IPC message from a malicious client pretending to be the E17 window manager. **Recommendations** For versions prior to 2.18.3, update to version 2.18.3 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** util-linux versions prior to 2.32.1 **Description** A race condition was found in the way su handled the management of child processes. A local authenticated attacker could use this flaw to kill other processes with root privileges under specific conditions. **Recommendations** For versions prior to 2.32.1, update to version 2.32.1 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** pacman version 5.0.1 **Description** The issue allows remote attackers to cause a denial of service, resulting in either an infinite loop or an out-of-bounds read, by utilizing a crafted signature file. **Recommendations** For version 5.0.1, consider updating to a newer version that addresses this issue, as no specific fix is provided for this version.

**Name of the Vulnerable Software and Affected Versions** libXpm versions prior to 3.5.12 **Description** The issue is related to multiple integer overflows that occur when a program requests parsing XPM extensions on a 64-bit platform. This can be triggered by a crafted XPM file, specifically through the number of extensions or their concatenated length, leading to a heap-based buffer overflow. As a result, remote attackers can cause a denial of service (out-of-bounds write) or potentially execute arbitrary code. **Recommendations** For libXpm versions prior to 3.5.12, update to version 3.5.12 or later to resolve the issue. As a temporary workaround, consider restricting the parsing of XPM extensions on 64-bit platforms until the update is applied.

**Name of the Vulnerable Software and Affected Versions** libX11 versions prior to 1.6.4 **Description** The issue involves the XListFonts function in libX11, which might allow remote X servers to gain privileges. This is achieved through vectors involving length fields that trigger out-of-bounds write operations. **Recommendations** For versions prior to 1.6.4, update to version 1.6.4 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** X.org libXtst versions prior to 1.2.3 **Description** The issue allows remote X servers to cause a denial of service, resulting in an infinite loop. This can be triggered via a reply in certain categories without a client sequence and with attached data, specifically the XRecordStartOfData, XRecordEndOfData, or XRecordClientDied categories. **Recommendations** For versions prior to 1.2.3, update to version 1.2.3 or later to resolve the issue. As a temporary workaround, consider restricting access to remote X servers to minimize the risk of exploitation.

**Name of the Vulnerable Software and Affected Versions** libXvMC versions prior to 1.0.10 **Description** A buffer underflow issue exists, allowing remote X servers to potentially have an impact by sending an empty string. **Recommendations** For versions prior to 1.0.10, update to version 1.0.10 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** libXrender versions prior to 0.9.10 **Description** The issue allows remote X servers to trigger out-of-bounds write operations via vectors involving filter name lengths. This is related to the XRenderQueryFilters function in X.org libXrender. **Recommendations** For versions prior to 0.9.10, update to version 0.9.10 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** libXv versions prior to 1.0.11 **Description** The issue concerns the XvQueryAdaptors and XvQueryEncodings functions in libXv, which allow remote X servers to trigger out-of-bounds memory access operations. This can be achieved via vectors involving length specifications in received data. **Recommendations** For versions prior to 1.0.11, update to version 1.0.11 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** libX11 versions prior to 1.6.4 **Description** The issue involves the XGetImage function in libX11, which might allow remote X servers to gain privileges. This is achieved through vectors involving image type and geometry, triggering out-of-bounds read operations. **Recommendations** For versions prior to 1.6.4, update to version 1.6.4 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** libXfixes versions prior to 5.0.3 **Description** The issue is related to an integer overflow that might allow remote X servers to gain privileges. This occurs when a length value of INT MAX is provided, causing the client to stop reading data and get out of sync. **Recommendations** For versions prior to 5.0.3, update to version 5.0.3 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** X.org libXi versions prior to 1.7.7 **Description** The issue involves multiple integer overflows that can be exploited by remote X servers, leading to a denial of service. This can result in out-of-bounds memory access or an infinite loop, specifically through vectors involving length fields. **Recommendations** For versions prior to 1.7.7, update to version 1.7.7 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** X.org libXi versions prior to 1.7.7 **Description** The issue allows remote X servers to cause a denial of service, resulting in an infinite loop. This is achieved through vectors involving length fields. **Recommendations** For versions prior to 1.7.7, update to version 1.7.7 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** libXrandr versions prior to 1.5.1 **Description** The issue is related to multiple integer overflows that can be triggered by remote X servers via crafted responses, leading to out-of-bounds write operations. **Recommendations** For versions prior to 1.5.1, update to version 1.5.1 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** libXrandr versions prior to 1.5.1 **Description** The issue allows remote X servers to trigger out-of-bounds write operations by leveraging mishandling of reply data. **Recommendations** For versions prior to 1.5.1, update to version 1.5.1 or later to resolve the issue.