CVE-2018-1000877: canonical ubuntu_linux Double Free
Vulnerability summary
CVE-2018-1000877 is a high (CVSS 8.8) Double Free vulnerability in canonical ubuntu_linux. EPSS estimates a 4.58% chance of exploitation in the next 30 days, higher than 91.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 13 · Related 8Timeline
- 20-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0 that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
4.58%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 4.58% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat3 products
Debian2 products
- libarchive< 3.3.3-2
- debian_linuxEOL8.0 | 9.0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
Fedoraproject1 product
- fedoraEOL28 | 29 | 30
Libarchive1 product
- libarchive≥ 3.1.0, < 3.4.0
Ubuntu1 product
- libarchive< 3.1.2-7ubuntu2.7 | < 3.1.2-11ubuntu0.16.04.5 | < 3.2.2-3.1ubuntu0.2
6 vendors · 9 products
References
19 links
lists.debian.org/debian-lts-announce/2018/12/msg00011.htmlMailing ListX Refsource MLISTThird Party Advisory- github.com/libarchive/libarchive/pull/1105/commits/021efa522ad729ff0f5806c4ce53e4a6cc1daa31X Refsource MISCPatchThird Party Advisory
Show all 19 references
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory