| Summary: | <app-emulation/qemu-2.5.0-r1: rocker: fix an incorrect array bounds check (CVE-2015-8701) | ||
|---|---|---|---|
| Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
| Component: | Vulnerabilities | Assignee: | Gentoo Security <security> |
| Status: | RESOLVED FIXED | ||
| Severity: | minor | CC: | qemu+disabled |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | http://www.openwall.com/lists/oss-security/2015/12/28/6 | ||
| Whiteboard: | B3 [glsa cve cleanup] | ||
| Package list: | Runtime testing required: | --- | |
fix is in qemu-2.5.0-r1 in the tree now http://gitweb.gentoo.org/repo/gentoo.git/commit/?id=96bdea53ec5c2e6d80e30b288043e34bfc766e25 The stabilization happened in bug 571566 Added to existing GLSA draft This issue was resolved and addressed in GLSA 201602-01 at https://security.gentoo.org/glsa/201602-01 by GLSA coordinator Kristian Fiskerstrand (K_F). Re-Opening for cleanup. Maintainers, the GLSA has been released please clean up the Vulnerable versions. Thanks for the report. Fixed in http://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d526fe71f108586f62e2efc2ef06a67321d22216 |
From ${URL} : Qemu emulator built with the Rocker switch emulation support is vulnerable to an off-by-one error. It happens while processing transmit(tx) descriptors in 'tx_consume' routine, if a descriptor was to have more than allowed (ROCKER_TX_FRAGS_MAX=16) fragments. A privileged user inside guest could use this flaw to cause memory leakage on the host or crash the Qemu process instance resulting in DoS issue. Upstream patch: - --------------- -> https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html Reference: - ---------- -> https://bugzilla.redhat.com/show_bug.cgi?id=1286971 This issue was discovered by Mr Qinghao Tang of Qihoo 360 Inc. @maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.