CVE-2019-7148
Published: 29 January 2019
An attempted excessive memory allocation was discovered in the function read_long_names in elf_begin.c in libelf in elfutils 0.174. Remote attackers could leverage this vulnerability to cause a denial-of-service via crafted elf input, which leads to an out-of-memory exception. NOTE: The maintainers believe this is not a real issue, but instead a "warning caused by ASAN because the allocation is big. By setting ASAN_OPTIONS=allocator_may_return_null=1 and running the reproducer, nothing happens."
Notes
| Author | Note |
|---|---|
| mdeslaur | this was disputed as not being a security issue, marking as ignored |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
elfutils Launchpad, Ubuntu, Debian |
bionic |
Ignored
|
| cosmic |
Ignored
|
|
| disco |
Not vulnerable
(0.176-1)
|
|
| trusty |
Ignored
|
|
| upstream |
Released
(0.176-1)
|
|
| xenial |
Ignored
|
|
|
Patches: upstream: https://sourceware.org/git/?p=elfutils.git;a=commit;h=e32380ecefbb23448541367283d3b94930762986 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |