VulnerabilityModified
CVE-2020-14315
A memory corruption vulnerability is present in bspatch as shipped in Colin Percival’s bsdiff tools version 4.3.
CRITICAL 9.8EPSS 2.55%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A memory corruption vulnerability is present in bspatch as shipped in Colin Percival’s bsdiff tools version 4.3. Insufficient checks when handling external inputs allows an attacker to bypass the sanity checks in place and write out of a dynamically allocated buffer boundaries.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.55% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- daemonology/bsdiff
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1856747Issue Tracking, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/07/09/2Mailing List, Third Party Advisory
- https://www.x41-dsec.de/lab/advisories/x41-2020-006-bspatch/Exploit, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1856747Issue Tracking, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/07/09/2Mailing List, Third Party Advisory
- https://www.x41-dsec.de/lab/advisories/x41-2020-006-bspatch/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.