CVE-2020-10878
Published: 1 June 2020
Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection. An application written in Perl would only be vulnerable to this flaw if it evaluates regular expressions supplied by the attacker. Evaluating regular expressions in this fashion is known to be dangerous since the regular expression engine does not protect against denial of service attacks in this usage scenario.]
Notes
Author | Note |
---|---|
alexmurray | Affects 5.005 to 5.30.2 |
Priority
Status
Package | Release | Status |
---|---|---|
perl Launchpad, Ubuntu, Debian |
bionic |
Released
(5.26.1-6ubuntu0.5)
|
eoan |
Ignored
(reached end-of-life)
|
|
focal |
Released
(5.30.0-9ubuntu0.2)
|
|
groovy |
Not vulnerable
(5.30.3-4)
|
|
precise |
Released
(5.14.2-6ubuntu2.11)
|
|
trusty |
Released
(5.18.2-2ubuntu1.7+esm3)
|
|
upstream |
Released
(5.28.3,5.30.3)
|
|
xenial |
Released
(5.22.1-9ubuntu0.9)
|
|
Patches: upstream: https://github.com/perl/perl5/commit/0a320d753fe7fca03df259a4dfd8e641e51edaa8 upstream: https://github.com/perl/perl5/commit/3295b48defa0f8570114877b063fe546dd348b3c |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.6 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | Low |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10878
- https://metacpan.org/pod/release/XSAWYERX/perl-5.28.3/pod/perldelta.pod
- https://metacpan.org/pod/release/XSAWYERX/perl-5.30.3/pod/perldelta.pod
- https://ubuntu.com/security/notices/USN-4602-1
- https://ubuntu.com/security/notices/USN-4602-2
- NVD
- Launchpad
- Debian