# libxkbcommon0 0.8.0-1ubuntu0.1: libxkbcommon0 0.8.0-1ubuntu0.1 for Ubuntu 18.04.6 LTS (bionic)

libxkbcommon0 0.8.0-1ubuntu0.1, released August 24, 2018, fixes 11 CVEs in libxkbcommon0. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-libxkbcommon0-0.8.0-1ubuntu0.1
- Platform: Linux
- Released: Aug 24, 2018
- Priority: Routine (Closes 11 CVEs, none high severity)
- CVEs: 11, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libxkbcommon0](https://patchblox.com/security/data/product/linux/libxkbcommon0.md) | Ubuntu 18.04.6 LTS (bionic) | 0.8.0-1ubuntu0.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2018-15853](https://patchblox.com/security/data/cve/CVE-2018-15853.md) | Routine | xkbcomp: endless recursion triggered by a crafted keymap file that induces boolean negation can lead to a | n/a | 0.0054 |  |
| [CVE-2018-15859](https://patchblox.com/security/data/cve/CVE-2018-15859.md) | Routine | xkbcomp: NULL pointer dereference triggered by a specially a crafted keymap file can lead to a crash | n/a | 0.0054 |  |
| [CVE-2018-15861](https://patchblox.com/security/data/cve/CVE-2018-15861.md) | Routine | xkbcomp: NULL pointer dereference triggered by a crafted keymap file that induces an `xkb_intern_atom` failure | n/a | 0.0054 |  |
| [CVE-2018-15863](https://patchblox.com/security/data/cve/CVE-2018-15863.md) | Routine | xkbcomp: NULL pointer dereference triggered by a a crafted keymap file with a no-op modmask expression can | n/a | 0.0054 |  |
| [CVE-2018-15857](https://patchblox.com/security/data/cve/CVE-2018-15857.md) | Routine | libxkbcommon0: An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon before 0.8.1 could be used by local... | n/a | 0.0045 |  |
| [CVE-2018-15854](https://patchblox.com/security/data/cve/CVE-2018-15854.md) | Routine | libxkbcommon0: Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer derefe... | n/a | 0.0043 |  |
| [CVE-2018-15855](https://patchblox.com/security/data/cve/CVE-2018-15855.md) | Routine | libxkbcommon0: Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer derefe... | n/a | 0.0043 |  |
| [CVE-2018-15862](https://patchblox.com/security/data/cve/CVE-2018-15862.md) | Routine | libxkbcommon0: Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local atta... | n/a | 0.0043 |  |
| [CVE-2018-15864](https://patchblox.com/security/data/cve/CVE-2018-15864.md) | Routine | libxkbcommon0: Unchecked NULL pointer usage in resolve_keysym in xkbcomp/parser.y in xkbcommon before 0.8.2 could be used by local a... | n/a | 0.0043 |  |
| [CVE-2018-15858](https://patchblox.com/security/data/cve/CVE-2018-15858.md) | Routine | libxkbcommon0: Unchecked NULL pointer usage when handling invalid aliases in CopyKeyAliasesToKeymap in xkbcomp/keycodes.c in xkbcomm... | n/a | 0.0043 |  |
| [CVE-2018-15856](https://patchblox.com/security/data/cve/CVE-2018-15856.md) | Routine | libxkbcommon0: An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1... | n/a | 0.0043 |  |

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