Bug 1122670 (CVE-2019-6488)

Summary: VUL-1: CVE-2019-6488: glibc: Incorrect attempt to use a 64-bit register for size_t in assembly codes results in segmentation fault
Product: [Novell Products] SUSE Security Incidents Reporter: Alexandros Toptsoglou <atoptsoglou>
Component: IncidentsAssignee: Andreas Schwab <schwab>
Status: RESOLVED INVALID QA Contact: Security Team bot <security-team>
Severity: Normal    
Priority: P5 - None CC: smash_bz
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/223469/
Whiteboard:
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Description Alexandros Toptsoglou 2019-01-21 15:03:55 UTC
The string component in the GNU C Library (aka glibc or libc6) through 2.28,
when running on the x32 architecture, incorrectly attempts to use a 64-bit
register for size_t in assembly codes, which can lead to a segmentation fault or
possibly unspecified other impact, as demonstrated by a crash in
__memmove_avx_unaligned_erms in
sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S during a memcpy.

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1667931
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6488
https://sourceware.org/bugzilla/show_bug.cgi?id=24097
Comment 1 Alexandros Toptsoglou 2019-01-21 15:05:12 UTC
SUSE does not ship x32 architecture.